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1. Thank you very much for a present which you sent me.
2. She was dancing with a student who had a slight limp
3. I am looking after some children who are terribly spoilt
4. The bed which I sleep on has no mattress.
5. Romeo and Juliet, whose parents hated each other, were lovers.
6. There wasn`t any directory in the telephone box which I was phoning from.
7. This is Mrs.Jones, whose son won the championship last year
8. I was sitting in a chair which suddenly collapsed
9. Mr.Smith, whom I had some specially to see, said he was too busy to speak to me.
10. The man whom I had some to see was sitting at the desk.
12. His girlfriend, who he trusted absolutely, turned out to be an enemy spy.
14. This is the story of a man whose wife suddenly loses her memory
15. We`ll have to get across the frontier, which will be difficult
16. a man brought in a small girl whose hand had been cut by flying glass
17. The car crashed into a queue of people, four of whom were killed
18. The roads were crowded with refugees, many of whom were wounded
19. The man who I was waiting for didn't turn up
20. Tom came to the party in patched jeans, which surprised the other guests, most of the other guests were wearing evening dress
1 . Ít's time I ( go )went home
2.Had he learnt the poem , he ( tell )would have told her about it
3. By this time next year I ( save)will have saved 500 USD
4. By the time I recovered from the shock he ( disappear)had disappeared round the corner
5. He described the accident as if he ( see)had seen it him self
6. When Linda said that she ( come)would come to see me the next day. I wondered what flowers she ( bring)brought
7. The police were stopping all the cars that day. They ( look)were looking for a criminal who ( escape)escaped from jail 4 days earlier.
8..by the end of last year, they ( build) built two bridges , and by this time next year another ( complete)will be completed
9. When it ( start)started to rain , we ( work)were working in the field
10. We have decided ( have)to have this old house ( rebuild )rebuilt next year
1.Do you know where my tennis racket ,mum?
=> She asked Mum if she knew where her tennis racket.
2.Our house is going to be painted by a firm.
=>We are going to have our house painted by a firm.
3. I'm really sorry I didn't invite her to the party.
=>I really wish I had invited her to the party.
4. we couldn't drive because of the fog.
=> The fog prevented us from driving .
5.I would love to be rich and famous.
=> If only I were rich and famous.
6.I haven't been to see them for over a year.
=> It's over a year since I saw them..
7. Although he was not guilty, they executed him
=> In spite of his not being guilty, they excuted him
.8 He shouldn't ask for a pay rise anymore.
=> If I were he, I wouldn't ask for a pay rise anymore
9. If he comes, tell him I'll be late
=>Should he come, tell him I'll be late.
10. We didn't go to the concert last night because of business
=> If it had not been for business,we would have gone to the concert last night.
11. The foreigner spoke too fast for us to understand.
=> If The foreigner hadn't spoken too fast ,we would have understood.
12 .She doesn't speak English well enough to get the job.
=> If she spoke English well, She coud get the job.
13 .Thanks to computer, it takes me a little time to do the work.
=> Without computer, I wouldn't have done the work
14 Without your help, I couldn't have finished the report on time
=> If you hadn't helped me, I couldn't have finished the report on time.
15 I dislike it when people criticize me unfairly.
=> I object to being criticized unfairly.
16 If only I had studied hard enough to pass the exam.
=> He regretted not having hard enough to pass the exam.
17 The heavy rain made it impossible for us to have our picnic.
=> We were unable to have our picnic because of the heavy rain.
18 " I'll have enough for a ticket if he pays me, tonight" She said
=> She said that she would have enough for a ticket if he pays her that night
19 " I'd phone her before I come if I were in your position?''
=> He said If he were in my position, He woud phone her before I came.
20 The secretary said " Sorry I never work on Sunday"
=>The secretary sorried for not working on Sunday
21 "I will bring you some food" He said to me
=> He said to me that he would bring me some food.
22" What a beautiful dress you have, mary" Peter said
=> Peter paid Mary a compliment on her (beautiful) dress.
23 " I wished I hadn't lent him some money"
=>Peter regretted having lent him some money.
24 " You've just got a promotion, haven't you. Congratulations"
=>Peter congratulated me on getting a promotion.
.25 You can avoid tooth decay by brushing your teeth regularly.
=>Brushing your teeth regularly can prevent you from tooth decay
26 We don't visit our parents very often because thay live so far away.
=>If our parents didn't live so far away, we would visit them very often.
27 The cat doesn't run fast enough to catch the mouse.
=>If The cat ran fast enough, it could catch the mouse.
28.You must stop smoking or you'll have a cough
=> Unless you stop smoking,you will have a cough.
29 You'll have an accident if you don't driver more carefully.
=>Unless you drive more carefully, you will have an accident.
30 You can have a good time by joining us
=>If you join us, you can have a good time.
31 Hurry up or you'll miss the 1st bus to work.
=> Unless you hurry up, you will miss the 1 st to work.
32 If you don't pay me back the money you take, i will tell the police.
=>Pay me back the money you take or I will tell the police
I. Fill in the balnk with Who, Whom, Which, That, Whose, Where, When, Why.
1. Have you seen the most beautiful dress where is in this shop?
2. The man and his horse who come from the United States.
ll. Combine each pair of sentences with Who, Whom, Which, That, Whose, Where, When, Why.
1. The painting have now been recovered which they were stolen from mansion in London.
2. Kevin was born on the day when his father was away on that day.
3. The nurse was taking care of the patient when the patient's legs were broken in an accident yesterday.
4. A tsunami killed more than 300,00 people that its is in some Asian countries in 2004.
5. London is one of the most capitals in the world where I was born there.
6. Yesterday I ran into an old man who I haven't seen him for years.
7. That pretty woman has married three times who is wearing a big red hat.
8. I don't know the reason that she left me by that reason.
9. The farmers and their cattle were fortunately rescued whom had been trapped in the storm.
10. I have to call the man who I accidentally picked up his raincoat after the meeting.
I. Fill in the blanks with Who, Whom, Which, That, Whose, Where, When, Why.
1. Have you seen the most beautiful dress....Which...........is in this shop?
2. The man and his horse........That...... come from the United States.
II. Combine each pair of sentences with Who, Whom, Which, That, Whose, Where, When, Why.
1. The paintings which were stolen from a mansion in London have now been recovered.
2. Kevin was born on the day whose father was away on that day.
3. The nurse is taking care of the patient whose legs were broken in an accident yesterday.
4. A tsunami which is some Asian countries in 2004 killed more than 300,00 people.
5. London, where I was born, is one of the most capitals in the world.
6. Yesterday I ran into an old friend whom I haven't seen for years.
7. That pretty woman who is wearing a big red hat has married three times.
8. I don't know the reason why she left me.
9. The farmers and their cattle that had been trapped in the storm were fortunately rescued
10. I have to call the man whose I accidentally picked up raincoat after the meeting
1/ We won't go out unless it stops raining
--> We won't go out if it doesn't stop raining
2/ I will call the police unless you give back my bicycle
--> I will call the police if you don't give back my bicycle
3/ You wouldn't be able to do this exercise unless your English were good
--> You wouldn't be able to do this exercise if your English were not good
4/ Unless we had enough rain, we couldn't grow rice
--> If we didn't have enough rain, we couldn't grow rice
5/ The fishermen couldn't have caught a lot of fish unless they had had good nets
--> The fishermen couldn't have caught a lot of fish if they hadn't had good nets
6/ I wouln't buy it unless I could afford it
--> I wouln't buy it if I couldn't afford it
7/ I would refuse to go unless they paid my expenses
--> I would refuse to go if they didn't pay my expenses
8/ I don't agree with his economic policy. I wouldn't vote for him unless he changed it
--> I don't agree with his economic policy. I wouldn't vote for him if he didn't change it
9/ He wouldn't have written unless he had heard news
--> He wouldn't have written if he hadn't heard news
10/ You might not have a terrible toothache unless you went to the dentist regularly
Câu này phải bỏ "not" thì mới đúng nghĩa.
You might have a terrible toothache unless you went to the dentist regularly
--> You might have a terrible toothache if you didn't go to the dentist regularly
Chúc you hok tốt nhé 
1/ We won't go out unless it stops raining
--> We won't go out if it doesn't stop raining
2/ I will call the police unless you give back my bicycle
--> I will call the police if you don't give back my bicycle
3/ You wouldn't be able to do this exercise unless your English were good
--> You wouldn't be able to do this exercise if your English were not good
4/ Unless we had enough rain, we couldn't grow rice
--> If we didn't have enough rain, we couldn't grow rice
5/ The fishermen couldn't have caught a lot of fish unless they had had good nets
--> The fishermen couldn't have caught a lot of fish if they hadn't had good nets
6/ I wouln't buy it unless I could afford it
--> I wouln't buy it if I couldn't afford it
7/ I would refuse to go unless they paid my expenses
--> I would refuse to go if they didn't pay my expenses
8/ I don't agree with his economic policy. I wouldn't vote for him unless he changed it
--> I don't agree with his economic policy. I wouldn't vote for him if he didn't change it
9/ He wouldn't have written unless he had heard news
--> He wouldn't have written if he hadn't heard news
10/ You might not have a terrible toothache unless you went to the dentist regularly
--> You might not have a terrible toothache if you go to the dentist regularly