*Gọi a là số bút chì trong mỗi hộp                                                                                                                                                               *Ta phải có 20 chia hết cho a ,15 chia hết cho a và a lớn hơn hoặc bằng 2                                                                                                    *+=>a   thuộc ƯC (20,15) và a lớn hơn hoặc bằng 2                                                                                                                                     ƯCLN (20,15)=5 =>ƯC (20,15)=(1;5)                                                                                                                                                         Vì a lớn hơn hoặc bằng 2 =>a=5                                                                                                                                                                Mỗi hộp chì màu có 5 chiếc    

13. put the verbs in brackets into the past simple or the present perfect

I 1) ....'ve been.... (be) a ski instructor for many year now.I 2) .............took up......... (take up) the sport when I 3) .................was......(be) at school .I still remember the first time I 4)..............tried.............. (try) to ski . I 5) .......slipped.................. (slip) on the ice and 6)......broke.............(beark) my ankle .Thankfully , I 7) ...didn't have.............. (not/have) a serious accident since then .Lat year ,I 8) .................tried..................... (try) ice skating for the very first time . I 9) ....slipped..................(slip) on the ice rink a couple of times since then but I 10)......didn't break............

(not/break) anything .Two years ago I 11) ....took............... (take) snowboarding tessons .I 12) ...don't like.................. (not/like) it because I 13) ....find.............(find) it a little dangerous I 14).................haven't played..... (not/play) ice hockey yet .There's a game tomorrow .I can't wait to go !

Fill in the correct particle

1. Our school usually breaks ..up... for the summer in Luly

2.My car broke .down.. on the motorway and I had to walk to a garage

3. When they saw the clown, the children broke ..out.. laughter

4. The man managed to break ..out... of peison early this morning

5. The fire broke .out... in the kitchen and quickly spread to the rest of the building

6. After hearing the bad news, the girl broke .down... ang cried

Replace the group of words in italics by an infinitive or an infinitive construction.

It is important that he should understand this.

It is important/or him to understand this.

He was the first man who arrived. He was the first man to arrive.

1 The captain was the last man who left the ship.

=>The captain was the last man to leave the ship.

2 He got to the top and was very disappointed when he found that someone else had reached it first.

=> He got to the top and was very disappointed to find that someone else had reached it first.

3 The committee have decided to send you to Paris. (You (go) to Par omit

=>The committee have decided to send you to Paris to Par omit

4 Would you be very kind and lend me your umbrella?

=>Would you be very kind to lend me your umbrella?

5 There are a lot of sheets that need mending.

=>There are a lot of sheets to need mending.

6 I was astonished when I heard that he had left the country.

=> I was astonished to hear that he had left the country.

7 It is better that he should hear it from you.

=> It is better for him to hear it from you.

8 I was rude to him, which was stupid. (It was stupid ...)

=>It was stupid of me to be rude to him.

9 If he had another child with whom he could play, he would be happier

=> If he had another child to play, he would be happier

10 It is necessary that everyone should know the truth.

=>It is necessary for everyone to know the truth.

11 There was no place where we could sit.

=>There was no place to sit.

12 He put his hand into his pocket and was astonished when he found that his wallet wasn't there

=> He put his hand into his pocket and was astonished to find that his wallet wasn't there

13 He rushed into the burning house, which was very brave of him.

=>(It was very brave of him to rush into the burning house

14 I can't go to the party; I have nothing that I can wear.

=>I can't go to the party I have nothing to wear.

15 It is expected that he will broadcast a statement tonight.

=>(He is expected to broadcast a statement tonight.

=>

16 I want a kitchen where ( = in which) I can cook.

=>I want a kitchen to cook

17 He reached the station exhausted and was very disappointed when he learnt that the train had just left.

=>He reached the station exhausted and was very disappointed to learn that the train had just left.

18 Haven't you anything with which you could open it?

=>Haven't you anything to open it?

19 It seems that the crime was committed by a left-handed man.

=>(The crime seems to have been committed by a left-handed man.

20 Is it likely that he will arrive before six?

=>(Is he likely to arrive before six?

21 I was on the point of leaving the house when the phone rang.

=> I was about to leave the house when the phone rang.

22 This is the plan: someone will meet you at the station . . .

=>(You . . will be met. (be met) at the station)

23 She is anxious that they should have every possible advantage.

=>She is anxious to find that they should have every possible advantage.

24 It is said that he was a brilliant scientist.

=>(He is said to be a brilliant scientist.

25 The strikers decided that the strike should continue.

=>The strikers decided the strike to continue.

26 Would you be very kind and translate this for me?

=> Would you be very kind to translate this for me?

27 It is advisable that we should leave the house separately.

=> It is advisable to leave the house separately.

28 You signed the document without reading it, which was very stupid.

=>(It was stupid of you to sign the document without reading it

29 It is said that she has a frightful temper.

=>(She is said to have a frightful temper.

30 He was the first man who swam the Channel.

=> He was the first man to swim the Channel.

31 They believe that he is honest.

=>(He . . .)is believed to be honest

32:=>(He appears to be killed with a blunt instrument.

33 He was the only one who realized the danger.

=>He was the only one to realize the danger.

34 It is said that the earth was originally part of the sun.

=>(The earth is said to be originally part of the sun.

35 He took out his spare wheel and was very disappointed when he discovered that that tyre was also punctured.

=-> He took out his spare wheel to be very disappointed to discover that that tyre was also punctured.

36 It is said that the murderer is hiding in the woods near your house.

=>The murderer is asid to be hiding in the woods near your house.

1. He ....likes......... ( like ) listening to music . He ...is litstening........ ( listen ) to music now

2. where .......are your parents...... (your parents / be )? They .......are cutting......(cut ) grass in the garden

3. She ......cooks...... (cook) very well .She ...is cooking.......(cook) now

4. He ........is....... (be) a write . He ....is writing......... (write ) a book now

5. They ........sleep...........( sleep) very well

6. He ......is..... (be) good at English .He ....studies......(study) the subject

III. Fill in the blanks with WHO, WHICH or WHOSE:

1. He arrived with a friend ___who___ waited outside in the car.

2. The man ___whose___ mobile was ringing did not know what to do.

3. The car _____which_ the robbers escaped in was a BMW.

4. The woman __whose____ daughter was crying tried to calm her down.

5. The postman __who____ works in the village is very old.

6. The family ___whose___ car was stolen last week is the Smiths.

7. The cowboy ___who___ is wearing a red shirt looks very funny.

8. A bus is a big car __which____ carries lots of people.

9. The volunteers, ____whose__ enthusiasm was obvious, finished the work quickly.

10. Children ___who___ like music are often good at mathematics.

11. The engineers ____who__ designed the building received an award.

12. The girl ____who__ recited the poem is my niece.

13. The townspeople, __whose____ pride in their community is well- known, raised enough money to build a new town hall.

14. The Pacific Ocean, __which____ might have been crossed by raft during the Stone Age, is the world’s largest ocean.

15. The newspaper to ___which___ we subscribe is delivered regularly.

1. She gives her children everything ..................... they want.

A. that B. who C. whom D. what

2. Tell me ...................... you want and I will try to help you.

A. that B. what C. who D. which

3. The place ......................... we spent our holiday was really beautiful.

A. what B. who C. where D. which

4.What was the name of the girl….passport was stolen?

A. whose B. who C. which D. when

5. The bed ...................... I slept in was too soft.

A. whose B. which C. what D. who

6. Nora is the only person ......................... understands me.

A. which B. who C. what D. whose

7. Why do you always disagree with everything…I say?

A. who B. which C. when D. what

8. this is an awful film. It is the worst…I have never seen.

A. who B. that C. what D. whom

9.The hotel …we stayed was not clean.

A. who B. that C. where D. when

10. The last time …I saw her, she looked very beautiful.

A. who B. that C. where D. when

11. What was the name of the people …car had broken down.

A. which B. who C. whom D. whose

12. I recently went back to the town…I was born.

A. what B. where C. who D. which

13.The reason ........................... I phoned him was to invite him to a party.

A. what B. whose C. why D. which

14. I don’t agree with .................... you have just said.

A. what B. who C. when D. which

15. She told me her address ........................ I wrote on a piece of paper.

A. what B. which C. when D. where

Viết lại câu nghĩa không thay đổi

1.She won't be home for dinner,will she?

->She will probably not be home for dinner,won't she?

2.The paper looks good,don't you think.

->The paper doesn't look good,does it?

3.I don't suppose that Larry would be free on Sunday,would be?

->Larry would not be free on Sunday,would she?

4.You can eat one more piece of cake,can't you?

->I think you can eat one more piece of cake

5.The prices at this store are very high,don't you think?

->The prices at this store are very high,are they?

I. Chọn đáp án đúng:

1. He likes to wear jeans because they are not easily ________. ( gone out/ worn out/ went off/ got off)

2.Your brother hardly surfs the Internet,________? ( does he/ has he/ doensn't he/ is he)

3.I suggest he_____to the dentist as soon as possible. ( goes/ to go/ going / go)

4. Everything_____we suggested was rejected. ( that/ whom/ which/ why)

5.My parents saw me ______ at the railway station ( in/ for /up/ off)

6.It's no use _____children_____quiet. They are always noisy.

A. to ask/ help B.asking/keeping C.to ask/keeping D. asking/ to keep

7. I feel sick now. I wish I ______ so much candy. ( did not eat/ hadn't eaten/haven't eaten/ wouldn't have eaten)

8.My watch broke some days ago. It needs______( to be repair/ repaired/ repairing/ to repair)

9. Hoa was the last person ______ the classroom yesterday. ( leave/ to leave/ left/ leaves )

II. Điền tính từ:

1. Many people survived because scientists had warned them_about___flood.

2. Tom applied for the post but he was turned__down__.

3. I thought everything_about___again but I couddn't remember all improtant details.

4.We took __away__ when we moved into the countryside.

5. They broke_down___the engament just 2 days before the wedding.

6. The injured man had to be taken to hospital _without___delay.

7.It was a good begining, but___in_ a while things started to slow down.

8.Plans for the trip are still___in_ discussion.

9.It was very nice__of__him to give me a gift.

10. Coffee shop will always be popular_with___retired people.