engVid quiz

Test your understanding of this English lesson

Test your understanding of the English lesson by answering these questions. You will get the answers and your score at the end of the quiz.
Which sentence is incorrect?

Which of these is an identifying clause?

Which of these is a non-identifying clause?

Which sentence is correct?

Merge these two sentences into one with either "which" or "that": "Many people are happier alone. This is not surprising."

Merge these two sentences into one using "which" or "that": "I saw a camel at the zoo. It was painted red!"

The laptop, which cost $500, is a Toshiba.

The book which cost $15 was my favourite.

The cake which is in the oven right now should be ready in 10 minutes.

The tea, which I bought yesterday, is peppermint.

Next Question

293 Comments on “That & Which”

Leave a Comment

A great lesson.

Monday, June 6th 2011

Nice lesson

Tuesday, June 7th 2011

a great lesson for me to learn spoken english. keep up the great work!

Tuesday, June 7th 2011

good lesson, i wanna ask about the first question in the quiz : how the comma and that together in this sentence

Tuesday, June 7th 2011

thanks you lessen.i”m from sri lanka.i need to learn english.pleas help me .tthanks you

Tuesday, June 7th 2011

    I am from Sri Lanka as well, but i think you need more than help right now. What do you mean by “thanks you lesson”.

    Wednesday, August 28th 2013

      no insult plz

      Friday, February 13th 2015

Thank`s a lot for filling that gap in my knowledge

Tuesday, June 7th 2011

Hi there people, what happened to the quiz? there is no quiz to answer.

Tuesday, June 7th 2011

very good teacher ,very good lesson,

Tuesday, June 7th 2011

It’s a great lesson that i learned. But I have a problem. I saw a speeding car, that really startled me. You have taught after the “,” it should be “which”.Please reply me. Thank you very much.

Tuesday, June 7th 2011

    Yes, it is strange also for me to write ”that” after the comma in this sentence.

    Thursday, August 31st 2017

thanks alex.the lesson was very useful for me before taking proficiency exam:)

Tuesday, June 7th 2011

    Hi zaynab could you speak with me on my hot mail please i want to improve my english

    Sunday, February 12th 2012

    can you understand when we you use that and which? i am confused right now and i will attend cope exam

    Wednesday, June 20th 2012

    hi..whats your name

    Saturday, December 26th 2015

hi mr alex Could you clarify what is required of this question

The cake which is in the oven right now should be ready in 10 minutes.

and thank you a lot for this lesson also for Adverb Clauses .

Tuesday, June 7th 2011


Tuesday, June 7th 2011

great…thank you dear ALex :)

Tuesday, June 7th 2011

hello sir,the lesson is good1 but i don’t know what happened my computer isn’t showing any quiz below the video……….

Tuesday, June 7th 2011

Hi Alex thank very much for English class,it is a lot help for me .

Tuesday, June 7th 2011

thanks for an awesome lesson!

Tuesday, June 7th 2011

thanks iam happy to do this quiz

Tuesday, June 7th 2011

t :)hank you

Tuesday, June 7th 2011

Hi Alex,

nice lesson. But,I can’t understand quiz no.1. could you explain?

Tuesday, June 7th 2011

    i also have question like you. the lesson “relative clause” showed very clearly that after “,” have to use which but the 1st question is in stark contrast. I need a explanation please

    Friday, December 7th 2012

      Hey Alex, Please reply to this ambiguity that we all are facing…

      Tuesday, February 5th 2013

        Hello I think that I can explain it for you the first sentence is written I saw a speeding car, which really startled me. now I saw a speeding car don’t lose any meaning by itself that’s beacause ,which really startled me is an extra information in other words is a non-identifying clause. the second sentence says I saw a speeding car, that really startled me. now we have to select this because “that” can only be used inside an identifying clause I hope that helps you.

        Thursday, February 12th 2015

great lesson ,although I am a little bit confused….

Tuesday, June 7th 2011

I failed the quiz, holycows, I never thought that will be true. 5 out of 10. what a nightmare.

Tuesday, June 7th 2011

I like it very much, thank you, is there any
means to improve my English my native language
Ehiopian language called Amharic

Tuesday, June 7th 2011


Tuesday, June 7th 2011

thank Alex,that’s what l needed.we need more.

Tuesday, June 7th 2011

hi elex i dont understand how way use that and which so much you can explain more detail for me .I hope you soon answer .thanks verry much

Wednesday, June 8th 2011

thanks alot Teacher…

Wednesday, June 8th 2011

hi elex ,
7 out of 10

Wednesday, June 8th 2011

i cloud not understand this sentences. what this sentences means. please let me know.
The cake which is in the oven right now should be ready in 10 minutes.

Wednesday, June 8th 2011

Hi, Alex!
I’ve got one question concerning the quiz.
Why is the sentence “I saw a speeding car, that really startled me” correct, and “I saw a speeding car, which really startled me” is not? I thought that a comma shouldn’t be used in an identifying clause…

Wednesday, June 8th 2011

    I thought the same! Was the only question I missed…

    Thursday, August 15th 2013

      As I can suggest, we all, including me, are very inattentive. It is asked in a question: What is incorrect (not correct)?

      Wednesday, September 4th 2013

    because we have to select the incorrect sentence.

    Thursday, February 12th 2015

the lesson that i took was great..lesson,which i took was great…

Wednesday, June 8th 2011

that and which was hard and un understandable it should be explan more easy way

Wednesday, June 8th 2011

This site helps a lot of people especially those who have challenge on communication skills.

Wednesday, June 8th 2011

The lesson that or which you taught us was really useful,thanks a lot….

Thursday, June 9th 2011


Thursday, June 9th 2011

Nice Lesson

Thursday, June 9th 2011

thank you for this lesson

Thursday, June 9th 2011

thank you alex was a great lesson ;)

Friday, June 10th 2011

hi, what is the difference in meaning between these sentences:
i had written the word
i have written the word
i wrote the word
and when should i use each one?

Saturday, June 11th 2011

thanks. i hope i get the answer

Saturday, June 11th 2011

thanks for your good lessons and also your fantastic method

Saturday, June 11th 2011


Sunday, June 12th 2011

God bless you , it is useful lesson going on :)

Sunday, June 12th 2011

Respected Alex Sir

Lectures that you have provided are excellent. I am grateful to you. I am passionate about English. I live in India. I want to learn English. Please guide me. Where can I get the resources? Suggest me some books/links.
your student

Sunday, June 12th 2011

First time I am clear about usage of that and which..

Sunday, June 12th 2011

The lesson that I just saw it’s really useful. Keep up the good work. :D

Sunday, June 12th 2011

Do anyone know how can I use this quiz? When I click on the quiz below video, nothing happens. :S

Maybe is a stupid question but…Do I have to pay for it? :S

Thanx Alex, greeting from Bosnia&Herzegovina.

Monday, June 13th 2011

I really appreciate this website. Congrats.

I just have one doubt. Could you explain the first question of the quiz?

1.Which sentence is incorrect?
a)I saw a speeding car, which really startled me.
b)I saw a speeding car, that really startled me.

I thought it was letter a) but the answer is letter b).

Tuesday, June 14th 2011

    They asked which one is incorrect, so we need to answer the wrong one.

    Sunday, September 29th 2013

nice lesson,thanks!
i got 7 out of 10 and i don’t really understand Q8 and Q9

Wednesday, June 15th 2011

Please let me know if the first answer to the quiz is right or wrong .

I saw a speeding car, which really startled me. wrong?

I saw a speeding car, that really startled me.
The answer indicates this is right, but I think it should be wrong!

Is the rule based on comas or meaning?
If in commas, when “that” is used should be no commas.

Thank you!

Wednesday, June 15th 2011

Ok alex,very good ….
I get 8 answer correct..
thank you


Thursday, June 16th 2011

Great work, Alex!

Thursday, June 16th 2011

Dear Mr. Alex please tell us which time we use as and which time like in the sentences thanks

Friday, June 17th 2011

ilove these website engvid becuse in here i can to learn english ok thanx for all

Saturday, June 18th 2011

Thank you for this useful lesson.

Saturday, June 18th 2011

It is very interesant lesson.

Saturday, June 18th 2011

MR ALEX THX 4 this great lesson, but i haven’t understood why we put the second choices 4 “The book which cost $15 was my favourite.” and “The cake which is in the oven right now should be ready in 10 minutes.”please could u elucidate more?????

Sunday, June 19th 2011

nice lesson

Monday, June 20th 2011

nice this lesson

Monday, June 20th 2011

hi mr.Alex iam eman from egypt thanks about this lesson ,I can,t understand this lesson 100percent ,bec.Ican,t diffrence between adverb clauses and indenty clauses please tell me how i diffrence between it,thanks.

Monday, June 20th 2011

Mr. Alex,
I didn’t know that different between “which” or “that” before I saw this lesson. Thanks.

Tuesday, June 21st 2011

I feel more happy if teacher’s of engVid.com add some more tricks in tutorials and make the duration of Video bit longer. Thanks and Regards.

Sunday, June 26th 2011

The lesson was really useful, thank you, Alex!

Monday, June 27th 2011

it was not that good sorry to tell you

Tuesday, June 28th 2011

    What crazy you are! The lessons are very useful to most of students who participated in this website. Why do you think that?

    Wednesday, January 4th 2012

    you my pretty little thing tell me something, what do you really mean ‘it was not that good’.

    Wednesday, August 28th 2013

It was great

Tuesday, June 28th 2011

i wish this game help me to edify my communication skill.
teachers, please help me.

Saturday, July 2nd 2011


Monday, July 4th 2011

it was an awesome lesson. And great explanation with simple and easily understandable examples.
thanx alot mr.Alex…..

Thursday, July 7th 2011

this site is being very very useful for me,thanks to this site i´m improving my english very fast,great lessons thanks alex.canadian english is better to understand than britsh and american english,my english is bad but i can understand 90% of what you say your pronunciation is perfect to understand for begginers like me

Monday, July 11th 2011

could you tell me what is difficulty between identifying clause and non-identifying clause, please!thank Alex for your lession.

Tuesday, July 12th 2011

    oh! boy give the guy a rest, that is exactly what he was explaining in the lesson.just grow up my boy.

    Wednesday, August 28th 2013

Thank you Alex

Tuesday, July 12th 2011

thank you so much, that was pretty much helpful :)

Tuesday, July 12th 2011

How can the answer to the speeding car question not be ‘which’. If the clause is identifying then either ‘tha’t or ‘which’ should be correct but if it is a non identifying clause then ‘which’ would be correct. But I’m told that ‘that’ is correct and ‘which’ is wrong. Did I miss something in the lesson ?

Sunday, July 17th 2011

i use which in all incidents instead of that then problem is solved

Friday, July 22nd 2011

Hey Alex, thanks for your undoubtedly useful lessons ! keep up e good work! But, there’s sth that i’m confused about. How do u know when to use which and that ? e.g qns1 in e quiz ; I saw a speeding car, that really startled me? Help Help help help plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Saturday, July 30th 2011

Thanks for the video, but I didn’t really understand the three questions at the end of the quiz: The book which cost $15 was my favourite.
~I bought one book.
~I bought more than one book.
The cake which is in the oven right now should be ready in 10 minutes.
~I am baking one cake.
~I am baking more than one cake.
The tea, which I bought yesterday, is peppermint.
~I bought one kind of tea.
~I bought more than one kind of tea.
Can you please explain what they mean? Thanks a lot!

Wednesday, August 3rd 2011

hi sir give me a info abt how can i make a sentence in English i hav not make a sence in this plz give me a easy pattren /methed ty :)

Saturday, August 6th 2011

nice lesson thank you

Monday, August 8th 2011

That’s great easy to understand. Thanks

Tuesday, August 9th 2011

Употребление слов which и that часто вызывает трудности, так как оба варианта вводят придаточные предложения и переводятся одинаково – который.

Рассмотрим два примера.

The movie that (which) we saw last weekend was really good. – Кино, которое мы посмотрели на прошлых выходных, было действительно хорошим.
Harry Potter, which I finished last week, was an axcellent book. – Гарри Поттер, которого я закончил на прошлой недели, отличная книга.

Как видите, мы показали, что в первом предложении возможны оба варианты, но во втором только один. Почему? Сейчас разберемся. Давайте из первого примера уберем придаточное предложение, вводимое that и which: The movie was really good (Кино было действительно хорошим). Какое кино? Что за кино? Для понимания предложения нам требуется конкретизирующая информация. Союзы that и which как раз предназначены для ввода конкретизирующей информации, без которой предложение невозможно полноценно понять. Как вы догадались, в случае с необходимой для понимания информации можно использовать оба союза.

Обратимся ко второму примеру и поступим с ним так же, как и с первым – уберем из него придаточное предложение: Harry Potter was an axcellent book (Гарри Поттер – отличная книга.) Согласитесь, что мы не будем задавать вопросы типа – Кто такой Гарри Поттер? Мы все знаем, кто такой Гарри Поттер, и нам не требуется конкретизирующая информация. Мы вполне можем обойтись без придаточного предложения. В данном случае придаточное предложение выполняет функцию не конкретизирующую, а сообщающую дополнительную (избыточную) информацию, и в этом случае следует использовать только союз which.

Рассмотрим еще примеры.

The table which (that) I bought from Ikea was cheap. – Стол, который я купил в Икеа, был дешевым.
Toronto, which is heavily populated, is a multicultural city. – Торонто, который является плотно населенным, многокультурный город.

Давайте уберем из первого примера придаточное предложение: The table was cheap (Стол был дешевым.) Какой стол? Что за стол? Требуется конкретизирующая информация, которую можно ввести либо при помощи союза which, либо that.

Теперь из второго примеры изымем придаточное предложение: Toronto is a multicultural city (Торонто – многокультурный город.) Получившееся предложение самодостаточно, т.е. нам не требуется никакая информация для его понимания. То, что вводится придаточным предложением, имеет характер необязательной дополнительной информации. В этом случае следует использовать только союз which.

Стоит еще также отметить, что конкретизирующую информацию не нужно выделять запятыми, она как бы составляет единое целое со всем предложением, в то время как необязательные (дополнительные) сведения выделяются с обеих сторон запятыми.

Sunday, August 14th 2011

    your darn crazy.

    Wednesday, August 28th 2013

    Thus, in the sum we use “that” or “which” in the identifying clauses; In none-identifying (additional) sentences we should only use “which”.

    Thursday, June 7th 2018

The book which cost $15 was my favourite.
I bought one book.
I bought more than one book.

Explain please

Sunday, August 14th 2011

    let me explain,Alex;
    1-The book,which cost $15,was my favourite(I bought one book)
    2-The book which cost $15 was my favourite (I bought more than one book)
    Note:if a relative clause is located between two commas,it gives extra information.In this case(for the firt sentence) we understand that we have only one book

    Sunday, September 11th 2011

      Ok but when speaking, we don’t see commas at all)) i’ve tried to do the quiz without putting much attention on commas and just understand the different meanings and choose a correct form. 7 of 10 oups…i failed

      Thursday, May 30th 2019

thank you so much.. I learn new lessons.

Wednesday, August 17th 2011

thank you so much , i can understand the difference between identifying and non identifying clause .

Sunday, August 21st 2011

Thank you so much!!
Your lesson always have helped me^^

Wednesday, August 24th 2011

Hi Alex thanks for lesson
you are the best in this field

Monday, August 29th 2011

thanks a lot for your good teaching

Saturday, September 3rd 2011

It is a great lesson.

Friday, September 9th 2011

9 out of 10. But I have a question… The answer of the first question is ”I saw a speeding car, that really startled me.” Why?

Thursday, September 15th 2011

so confused and difficult to use in common speech…I need to thing about it all the time when I speak! I will be practice,Thanks Alex)

Friday, September 23rd 2011

i have to check it out again :(
my scored 5/10

Friday, September 30th 2011

hey teacher. i’m from mongolia. maybe, you don’t know. my mongolian teacher tought me, that and which are same. i tested your test, and i scored 2 out of 10. i really don’t good understand. everyday, i watch engvid.com. my grammar skill isn’t good, help me. i want to give EILTS.

Thursday, October 6th 2011

thank you

Friday, October 7th 2011

Thank you Alex
but why in the first question letter B is correct?

Saturday, October 8th 2011

Hi Alex. Greeting you from Azerbaijan. Your lessons help me to improve my English, thnx you a lot!
Please, explain differences between Lay and Lie.
Good Luck! We Love U :)

Thursday, October 13th 2011

Oh Jeez! I’ve scored 5 out of 10 :(
What a fail. By the way, is not it a mistake that you wrote ”The laptop, which cost $500, is a Toshiba.”?
Shouldn’t we have written ”which costS” since we’re talking about the single laptop? It confused me, really. Can somebody make it clean? Thanks!

Thursday, October 20th 2011

    well done sir

    Sunday, February 17th 2013

    I’d the same score :(

    Friday, June 21st 2013

You are the best teacher I ever had!

Sunday, October 23rd 2011

This class is very nice. Alex he is a good teacher. am the fan of alex..

Sunday, October 23rd 2011

    your an Indian i suppose, you should be writing better English than this sandeep.

    Wednesday, August 28th 2013

Hi Alex
I just want to know about the 1st testing question.Why coma is used in case of an identifying clause.I am confused.Would you please help me?

Saturday, October 29th 2011

thank you very much!!!!!!!!

Tuesday, November 1st 2011

Hey mister teacher.Not everybody on youtube is an English teacher.Silly test.9 out of 10 anyway

Friday, November 4th 2011

Thanks Alex ….. I have to review the lesson.

Wednesday, November 9th 2011

Thanks a lot Alex. Exactly what I was looking for!)

Friday, November 11th 2011

    what were you looking for juliange.

    Wednesday, August 28th 2013

such lovely and clear voice.

Wednesday, November 16th 2011

The most difficult lesson ever on this site, at least for me. . .

Thursday, November 17th 2011

Iron in the fire quenched , the person – in need.

Monday, November 21st 2011

thanks a lot Alex!

Thursday, December 22nd 2011

Hi, Mr. Alex, your lesson was just GREAT. thanks. But, I’m confused about (Many people are happier alone, which is not surprising) would you explain it alittle bit more, please? thanks

Tuesday, December 27th 2011

Thanx a lot :) um delighted with these lessons :)

Tuesday, January 3rd 2012

Brilliant, thank you

Tuesday, January 3rd 2012

Perfect!!!!! The lessons are great! And the teachers explain effectively! I do love them all. And I would like this program run forever for me and for others.I am Cambodian. I love English literature. Please the god help you! Bye My Favorite Teacher, My Favorite Lessons.

Wednesday, January 4th 2012

I don’t understand, why the answer correct is Both 1 and 2.

Merge these two sentences into one using “which” or “that”: “I saw a camel at the zoo. It was painted red!”

1I saw a camel at the zoo that was painted red.

2I saw a camel at the zoo which was painted red.

3I saw a camel at the zoo, which was painted red.

4Both 1 and 2.

Thursday, January 5th 2012

    becouse he told that we can use which or that for an identifying phrase but ‘which’ with no commas and the sentences used the phrase “xxx was painted red” to identify a particular camel, “the camel that he saw” (using the lesson again).
    I hope have explained well.

    Thursday, July 11th 2013

Well done Alex, carry on this way!

Friday, January 6th 2012


Friday, January 6th 2012

thanks a lot. your teaching really is best.all can not teach english. you are one of the best teacher in the world.

Thursday, January 12th 2012

It’s not so simple…

Tuesday, January 24th 2012

thanks for your precious information

Tuesday, January 31st 2012

thanks a lot , i get 9 of 10 , it is great :)

Monday, February 20th 2012

i needed it

Friday, March 16th 2012

Thank you Alex, and and I`ve got a question not related directly to this lesson:
sometimes people say “I am going to do it” or “I am going to do this” .
I`m a little bit confused of this difference. Could you pls explain .

Saturday, March 17th 2012

I do love your lessons. I got all questions, WHICH YOU PREPERED FOR US, right!!!! Yahooooo!!!!

Saturday, March 31st 2012

i don’t understand why teacher or administrators of the website don’t answer our questions about the lesson???? are they supposed to do it or not? a lot of us didn’t get the first question in the quiz, is anybody gonna to explain this after all?!

Monday, April 2nd 2012

    Olesya, you can’t use THAT in non identifying clause

    Monday, April 2nd 2012

    Hey,, you can ask if you have any questions..

    shouks at gmail dot com .. it is very easiy.. i can help you..

    Thursday, February 21st 2013

Thats awesome O.O

Monday, April 2nd 2012

It is my life ambition to meet u in real life, Alex. U are the best teacher in the bloody world, you know. keep up the amazing work

Friday, April 6th 2012

I have fun with, result in I discovered just what I used to be having a look for. You have ended my 4 day long hunt! God Bless you man. Have a nice day. Bye

Monday, April 9th 2012

We have a lot of commas in Russian, far more than in English. And actually I had been underestimating English commas until I watched this lesson. Thank you

Saturday, April 14th 2012

I have study again.Samples of lesson are quite different than the Quiz.
I admire this website and all of you.

Sunday, April 15th 2012

Really great lesson and a great quiz too, because it is longer than usual and a little bit more difficult at the end. Thank you very much!

Sunday, April 29th 2012

Thank you very much. The lesson was great.

Monday, April 30th 2012

I love it, Alex.
I just may became the best writer.
Thank you,

Friday, May 4th 2012

The book which cost $15 was my favourite.

I bought one book.
I bought more than one book.
I’d love to know how the phrase “which cost $15,” necessarily implies that one purchased multiple books. While the book may have cost $15, that fact has no bearing on whether or not one purchased a single or multiple books. It is an overreaching assumption for a standardized test to assume that because one chooses to qualify a SINGLE purchase, that he or she necessarily purchased multiple books. The book, which cost $15 dollars, could have been the purchaser’s favorite book but the phrase does not imply that it was the favorite one of the books that he or she purchased. The cake qualification also fits the bill; because it is in the oven does not necessarily imply that the cake was or was not the only one purchased. I pray for those trying to learn English as secondary language. It must be incomparably frustrating but I admire the effort.

Tuesday, May 15th 2012

Caveat to my prior statement: the cake being in the oven doesn’t imply that one is baking two cakes. It may be in the oven but its being in the oven doesn’t mean that there is another cake in the oven at all.

Tuesday, May 15th 2012

This part it was really diffcult for me
I did not understand very much

Saturday, May 19th 2012

Really good

Saturday, May 19th 2012

Why I saw a speeding car which really startled me is wrong?

Wednesday, May 23rd 2012

That was really good, thank you

Saturday, May 26th 2012

Thank you very much for presenting these English lessons. Mr.Alex, you’re an excellent teacher. Your method of explaining lessons is excellent. These lessons are useful to everyone who is interested in improving English.

I’m Gamini from Sri Lanka

Wednesday, May 30th 2012

little bit confusing me

Saturday, June 2nd 2012

well done!!

Thursday, June 7th 2012

thank you for the lessons but could you please tell me what is the deffirent between which and that please
E-mail: mhamdi_freestyle@hotmail.com

Friday, June 15th 2012

what a good lesson~
great!! ^^

Monday, June 18th 2012

The lessons which/that are given by Alex are always really good! Thank you again teacher Alex!

Thursday, June 21st 2012

hi…….ronnie..in your lesson of do and does..cant we use ‘you’ in past tense.example:-you did,you din’t..i got this doubt because you did not mention it..

Saturday, July 7th 2012

thanks for the lesson mr alex..

Monday, July 9th 2012

Really really good lesson for me.

Monday, July 9th 2012


Tuesday, July 10th 2012

Nice one Alex!!

Wednesday, July 11th 2012

So nice and interesting way of teaching a language!!!

Sunday, July 15th 2012

you are a good teacher

Tuesday, July 17th 2012

thank you very much..this lesson really help me to understand using both that and which…

Monday, July 23rd 2012

Thank you Mr. Alex
That was an excellent lesson, I hope you make more lessons like that. God Bless You.

Wednesday, July 25th 2012

Gr8 lesson though I haven’t scored good

thx Alex

Wednesday, August 1st 2012

v informative lesson

Sunday, August 5th 2012

What a great lesson! Thanks a lot!

Thursday, August 9th 2012

Hi Alex. May I ask a question? Sentence: I want to ask you about what happend yesterday.(Using “about” in this sentence correctly or not correctly?)

Monday, August 27th 2012

I was understand.

Friday, September 28th 2012

    Give me a break an Indian. you should have said “I understood”.

    Wednesday, August 28th 2013

Hello, Alex. Could you explain the difference between “that” and “what”. For example, “You can not buy all what/that you need”. What is better to use and why? I thought I had to use “what” here. But in your RESOURCES I found out that the right variant is “that”. Why?

Sunday, October 7th 2012

I got only 70%

Thursday, October 11th 2012

2 and 3rd are similar, A house which has a garage is the kind I want, correct without comma, and the 3rd one with comma such as The book, which is written by Stephen King, is on sale. why this difference

Friday, October 19th 2012


Monday, November 12th 2012

hi, alek. actuaaly i cant undrstand 6 quiz this answer both 1 and 2. how com.plz tell me?

Sunday, November 18th 2012

Very nice lesson!
Thank you very much Alex!

Take care!

Friday, November 30th 2012

Great lesson. The last 2 questions’ answers are wrong though.
A cake is only baking when its in the oven. The other cakes outside the oven is not baking yet. Therefor the person is only baking 1 cake.

And you have to be more specific in the answers to the 10th question. The answers does not refer to what i bought >yesterday<. The answers should be, "I bought one kind of tea yesterday" and "I bought more than one kind of tea yesterday". The current answers tells us about how much tea was bought in our lifes so far and not just yesterday.

Thanks for your great videos and quizzes :)

Monday, December 3rd 2012

hey guys, I’m a newcomer here.

Could you help me to check these following sentences, whether they’re right or wrong.. I just learned when we can use which and that.

1. The Amazing spiderman, which was played few weeks ago, I think is the worst episode of Spiderman movie history.

2. Spiderman movie that starred by Andrew garfield as Peter parker and just played few weeks ago I think is the worst episode of Spiderman movie history.

I’m waiting your correction guys, thanks before.. ^^

Sunday, December 9th 2012

    1. In my opinion, The Amazing Spider-Man, which played a few weeks ago, is the worst chapter in Spider-Man movie history.

    2. The Spider-Man movie that starred Andrew Garfield as Peter Parker and that just played a few weeks ago is the worst movie in Spider-Man movie history.

    The second one is really long and works better in speaking than in writing.

    Monday, December 10th 2012

      Excellent lesson. It is one of these lesson that really opens my mind. But please, I have only one simple question. Is it possible to use other verb (not to be) after the clause? ej: the movie that I saw _made_ me fell bad.
      Thank you any way. If you visit México don’t care about contact me. I’ll really feel good to host you. I leave close to Coyoacan, It is very close to Frida Calo museum. I have learned so much with all of your classes and I need to thank in any way.

      Friday, July 12th 2013

hii alex… ur lessons are so good..
could you pls explain where to use MAY and MIGHT…?

Monday, December 10th 2012

i dont understand why the ans is 3rd option… could u pls xplain..

Merge these two sentences into one with either “which” or “that”: “Many people are happier alone. This is not surprising.”

1.Many people are happier alone, that is not surprising.
2.Many people are happier alone which is not surprising.
3.Many people are happier alone, which is not surprising.
4.Many people are happier alone that is not surprising.

Monday, December 10th 2012

    Hello, there, I would like to share some my own opinions.
    In 3rd option , the sentence “Many people are happier alone” could be stand alone as a independent sentence, and “which is not surprising” is a “non-essential identifying” clause that can be ignored without any problem to understand the whole sentence. So it should be a comma and which…surprising clause on the second part.

    Saturday, November 11th 2017

didn’t we say we use “that” only with identifying clauses? but in this quiz, I am confused of question number. Can get an explanation please?

Tuesday, December 11th 2012

    I didn’t get that too

    Thursday, December 13th 2012

Didn’t we say we use “that” only with identifying clauses?But in the above quiz, we used it with an non-identifying clause. what will be the reason? Can I get some explanation please?

Tuesday, December 11th 2012

    You’re correct. In the above example, option A is incorrect.

    Thursday, December 13th 2012

Good lesson, thanks Alex.

Tuesday, December 11th 2012

You got 8 correct out of 10
I love the lesson but I really don’t understand what is the relationship between numbers and that or which ..
7. The laptop, which cost $500, is a Toshiba.
I have one laptop.
I have more than one laptop.
8. The book which cost $15 was my favourite.
I bought one book.
I bought more than one book.
9. The cake which is in the oven right now should be ready in 10 minutes.
I am baking one cake.
I am baking more than one cake.
10. The tea, which I bought yesterday, is peppermint.
I bought one kind of tea.
I bought more than one kind of tea.
please explain this to me..

Thursday, December 13th 2012

9/10, wow!

Thursday, December 20th 2012

he teacher
thanks for every thing .i was understanding in your lessons you’r great the shanks alot

Wednesday, December 26th 2012

Dear Alex, I did wrong in Q8 and Q9. It would by good if you can provide any explanation to support the correct answer. Thanks!

Thursday, January 3rd 2013

thanks :)

Tuesday, January 8th 2013

hello. the lesson was really helpful. could you clarify why in question 1 there is a coma before the word that?

Saturday, January 12th 2013

    The question was to identify the incorrect sentence.

    Tuesday, January 22nd 2013

I am still confused with using “that and which”, the only thing i can do is to see if there is a comma in the sentence :(

Tuesday, January 22nd 2013

    I thought I understood a little.. nevertheless you can add my QiE number 396582310 to discuss this question with me , :D.

    Saturday, November 11th 2017

But the coma is an essential indicator (if I have understood the lesson :)
Thank you Alex, it is very useful.

Tuesday, February 19th 2013

I am kind of confused the test #1. Even if the sentense include of identifying clause, the both of which, that can be use in the sentense. AM I wrong? anybody help me out plz?

Wednesday, February 20th 2013

Thank you Alex T_T it is very useful.

Friday, March 1st 2013

it is very great lesson , plese we need more lesson about identify and non-identify clause

thank you

Thursday, March 7th 2013

why i bought more than one book is correct . I don’t understand how i can known the number is one or more . I have comfused between No. 7 and no. 8 in Quiz . we need mor explain please

Thursday, March 7th 2013

Very good !

Friday, March 8th 2013

Sometimes it is hard to distinct identifying clause.e.g., I saw a cat. It’s OK. If the given condition is : In the zoo, there are a lot of animals that startle me, including a cat that has two tails.
If I was asked to jointed two sentences into one with either that or which, I would think it is a identifying clause needed because of ‘ that’ which is only used in identifying clause.
But the given sentences asked to joint together were : Many people are happier alone. This is not surprising . An non-identifying clause which gives more idea to the whole main clause sounds more reasonable: More people are happier alone, which is not surprising; identifying clause must be put at the end and closed to the noun which modifies. Can I conclude that the common sense is priority, can’t I ? Please , put your eye to this post and share your opinion. Great thanks!

Monday, March 11th 2013

Forget the immediate above-one which I just posted because I misunderstood ‘ either which or that ‘: treated it is a hint of selection of identifying clause.

Monday, March 11th 2013

thank you so much, Mr. Alex.

Monday, March 11th 2013

I just wonder his sample sentences. i noticed that the 1st 2 sample subjects are common nouns and the last 2 sample subjects are proper nouns. Do they matter when i use that and which?

Kiddo from the Philippines

Thursday, March 14th 2013

This video,which I watched it on today, was really beneficial about how to use that and which.

Thanks Alex

Friday, March 22nd 2013

Alex Sir. I have got 70/100.I know that in 1 question I made simple mistake where I have to put comma(,). 3rd time I have got 70/100 but next time I will try to get 100/100.
With regards

Friday, June 7th 2013

I am unable to understand the difference between “which” and “that”. I didn’t get a clear idea. Could anyone elaborate with more examples.

Sunday, July 14th 2013

Thank you teacher!!

Friday, July 19th 2013

Hello there everybody..!!

Wednesday, July 24th 2013

Great lesson. I love the method you teach.
However I do not think that your answer number 1 in the quiz is right. In addition, can you explain more the answer 8 and 9? Thank so much

Tuesday, August 6th 2013

Hi Alex, I’m wondering whether you’ve made a mistake on the #1 question of the quiz, because I’m stuck with these answers, they don’t seem to make sense to me, may be I’m wrong, but please reply, I’m so confused, Thank you.

Tuesday, October 8th 2013

Thank you.

Friday, November 22nd 2013

Thanks teacher

Tuesday, December 17th 2013

very good lesson

Sunday, December 29th 2013

thanks, please let me know, when we can use the relative clauses as connective?

Tuesday, December 31st 2013

Alex, I think you could better the examples, clauses and non identyfing are confusing to understand diferences.

Tuesday, January 28th 2014

Alex, these examples looks me confusing.

Tuesday, January 28th 2014

The cake which is in the oven right now should be ready in 10 minutes.

I am baking one cake.
I am baking more than one cake.
I did’t understand why was the answer b may you please explain to me this and thank you for your lesson Mr.Alex

Sunday, March 2nd 2014

I got 6 out 10 definitely I am a little bit confused

Friday, March 14th 2014

Thank you Mr Alex for your lesson and still iM confused about Identifying and Non identifying Clause so could you plz… brief it again for me?????

Wednesday, April 2nd 2014

Hi Alex .. I think there is a point you didn’t menion it in your video .. that identifing clause means we have more than one thing, while non-identifying clause maens we have just one thing .. as example ..
the laptop,which cost 500$,is a Toshipa ,
means that I have one laptop
is that true ?

Friday, April 4th 2014

[…] https://www.engvid.com/ Learn when to use “that” and “which,” and listen to a review of the two types of relative clauses. Commas are important and can change the entire meaning of a sentence! Make sure to also watch my lesson on relative clauses at https://www.engvid.com/writing-relative-clauses-overview/ and to take the quiz on this lesson at https://www.engvid.com/that-which/#quiz […]

Friday, April 4th 2014

Dear Alex, could you tell me what’s the meaning of the last four questions?

Thursday, April 17th 2014

Could you explain the reason of using a comma in the second sentence of question one?

Tuesday, May 6th 2014

I also have the same question; number one should not have a comma, so, was this an editing error or the software is drunk ;-)

Sunday, May 11th 2014

I appreciate you so much that I just want to stand up and applaud you for years,(for all your work).

Tuesday, July 8th 2014

Awesome lesson. Thank you

Sunday, July 20th 2014

thanks so much again and again

Wednesday, July 23rd 2014

I don’t know,I got only 60 %.

Saturday, August 16th 2014

Thanks a lot

Saturday, September 6th 2014

9/10 not too bad.
Thank you for your lesson.
I’ve just known the meaning of identifining, non-identifing relative clause.

Wednesday, September 17th 2014

this lesson is raelly hard its not easy to defferentiate which one is right and which one is wrong any any way thank you su much i reaally like your leesson

Thursday, October 2nd 2014

Thank you! You helped me a lot!

Friday, November 7th 2014

thank you very much Alex, I’ve really well understood the (no more) tricky point…I’m deeply grateful :)

Sunday, February 8th 2015

Dear. Sir,
I have got nine correct out of ten. I wonder if i might ask you a question. I do not understain very well the first. Maybe is a restrective clause or not? I did see a coma but I did wrong that. i pay my respect to you. Thank you kindly. H

Saturday, March 14th 2015

before ‘ve watched this video.i was really confused that when we should use “that”,when we should use “which”.thank you so much

Monday, April 13th 2015

wonderful lesson. Your videos are really useful.

Friday, June 12th 2015

Another wonderful lesson! 9/10 Thanks.

Sunday, July 26th 2015

Great lesson.thanx Alex

Wednesday, October 7th 2015

Where can I watch the previous lesson? What previous lesson did you meantion in this video?

Tuesday, October 13th 2015

I am really upset. I got 30.

Friday, January 15th 2016

Please I can’t understand the last four questions in the quiz.Would you explain them please?

Saturday, February 20th 2016

Now I understand the difference between identifying clause and non-identifying clause.
Thank you.

Saturday, April 30th 2016

I got :D

Saturday, May 14th 2016

its not necessary . i didn’t like your teaching

goo zoo

Tuesday, May 17th 2016

I’m bad in this lesson. I’m sorry Alex.

Saturday, June 18th 2016

A kind of complex it.

Thursday, July 28th 2016

very good teacher ,very good lesson,

Saturday, September 3rd 2016

Alex, you are a great teacher.

Monday, September 19th 2016

how can i know the correct answer. pls give the explanation for the answers

Monday, October 10th 2016

it was very good lesson. Hopefully your tips will help me in the exam in the exam on wednesday

Friday, November 11th 2016

Difficult lesson. After analyse I made second attempt and got 9 from 10

Sunday, November 13th 2016

First of all, I would like to this amazing site engvid.

Just a suggestion: I would like to have a feedback about how much exercises exists and how much is completed.


Tuesday, November 15th 2016

Hi Alex, my fav. teacher
I totally got ur lesson on the video but i could not get a good score on its exam.(3/10)
I think the way u thaught this subject needs more clarification…or the questions and the video are not on the same level.
plz make another video about it.

Sunday, December 18th 2016

Hi Alex Q The lesson is very very BAD. (((

Monday, December 19th 2016

Thank you very much teacher .

Saturday, December 24th 2016

I got 100. Again. Yes yes yes. Thanks

Wednesday, February 15th 2017

no 1 (a) IS correct, but is not the answer we are looking for in the context of this lesson. It looks to me as if I was startled by a speeding car. I think a less ambiguous question would be in order.

no 2 is almost yoda-speak. I cannot believe anyone would use that sentence when attempting to say “I want a house with a garage.”

no 3 is another clumsy way to say something simple.
People would be more likely to say “Stephen King’s book is on sale”?

no 4 seems a horribly clumsy way to say “I saw a cat with two tails.”

nos 5 & 6 can be merged without using which or that.
I use colons and semicolons, they’re much easier for sentence splicing.

no 7 – it is clear to me from “The Laptop” rather than anything else that there’s only one laptop being discussed. If there was another, then the sentence would begin “This/That Laptop”

no 8 is a giveaway because you need more than one of whatever it is to have a favourite. eg nobody ever talks about their favourite mother because they only have one mother.

no 9 isn’t quite so clear cut as it seems.The cake we are talking about might be the last one we are baking today, whereas all the others are sitting on wire racks cooling off (and definitely not baking). So in that sense we are baking only one cake.

Another problem is as follows: we don’t know if the oven can hold more than one cake at a time. If there’s only space for one, then in another sense we are only baking one cake.

And a third problem is this: it is not specified whether the oven is on or off, or whether it is working or not. Clearly we cannot bake any cakes if the oven is broken or turned off. Talking about the cake being “ready” does not help clarify matters, because “ready” might mean “ready to throw away.”

oh, and if the oven is turned up too high, then we are burning, not baking.

no 10 – oh, I’ll let you off that one. But I’d like to know if “peppermint” means colour or flavour.

Friday, April 28th 2017

Amazing lesson,”That” and “Which” all your lessons are amazing.

Tuesday, July 4th 2017

though I am not confused with ‘which and that’ lesson, but I am confused with the sentence in the last question.

The tea, which I bought yesterday, is peppermint.

why we used ‘is’? why not ‘was’?

I was made to believe that we should not mix present and past tense in one sentence.

Any advice?

By the way, your lesson is very interesting.

Thursday, August 17th 2017

What a great lesson. Thank you. Alex! you’re the best!!

Friday, October 20th 2017

you engvid guys make things easier! you make the topic which confused me for so many yrs so easy to understand. it’s amazing useful! thx u a lot, teacher

Wednesday, November 22nd 2017

Simply Awesome!!

Tuesday, January 23rd 2018

Hi Alex, thanks for your english lesson videos. It will help a lot of your viewers. But on this video, I have 2 questions.
On point # 8 – The book which cost $15 was my favorite.
The answer is: I bought more than one book.
The subject “book” is singular and the verb “was” is also in singular form. Based on the question, how to justify that the answer is correct?

On point # 9: The cake which is in the oven right now should be ready in 10 minutes.
Answer : I am baking more than one cake.
The subject “cake” is also singular.
Question: same as point 8 above.

Sunday, January 28th 2018

Hello, teacher Alex.
Could you please explain the question 6? Why can’t I choose the third option?

Best regards!

Friday, February 2nd 2018

I like this lesson

Tuesday, February 13th 2018

“The book which cost $15 was my favourite.”
Wouldn’t it be: “The book which costs $15 was my favourite.”

Tuesday, April 3rd 2018

    Yes if you’re speaking in the present. If you want to use the past, it’s “cost.” :)

    Thursday, June 7th 2018

Thanks Alex! Grate lesson!

Thursday, May 3rd 2018

it was hard

Monday, August 27th 2018

your teaching stzle is very nice. Thanks for lession.

Thursday, September 6th 2018

it is a wonderful class. could you also explain how to use “in which”? Thanks.

Tuesday, November 13th 2018

Many thanks Alex

Monday, November 19th 2018

Hi! I have a questions that may seem out of place, but I really have the bug.

In the first example you use the verb see and not watch. I am use to say “watch a movie” because I was thaugh that it was incorrect to use the verb see when refering to movies or tv.

Coul you please explain when to use watch and see when refering to movies or tv?

Thank you :)

Wednesday, March 13th 2019

Excuse me sir! I would think “I saw a speeding car, which really startled me” is the best answer for question I by reason of the comma, plus the fact that ” I saw a speeding car” is an independent clause by itself and needs no more identification. Am I right?

Monday, January 20th 2020

The 7th sentence is incorrect. The laptop, which cost 500$, is a Toshiba. “which cost 500$” is a defining part and it is not a modification, so there are no need in comas. Would you understand what laptope I meant if I wrote “the laptop is a Toshiba”? Without this extra information about the price we can’t understand which laptop is a Toshiba. So according to this I deffently have more than one laptop, probably that another laptop which cost 400$ is a Dell.

Monday, June 22nd 2020

Thanks a lot for this great lesson !!!!!

Tuesday, June 30th 2020

Dear Alex,
You were in this lesson excellent!
I really was needing to know the difference between them when using in clauses. So you saved me! Thanks I’ll remember you forever!

Friday, July 10th 2020

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