Bài tập về câu điều kiện có đáp án

 BÀI TẬP VỀ CÂU ĐIỀU KIỆN(13.03.2013)
I/Gạch chân đáp án đúng
1) If that hat costs much, I (would have bought/will buy/bought/would buy) a small one.
2) If you (drive/drove/had driven/driven) more carefully, you wouldn’t have had so many accidents.
3) If I (make/makes/made/had made) that mistake again, my teacher will get angry with me. 
4) If I spoke English, my job (was/were/will be/would be) a lot easier.
5) If he (goes/went/had gone/would go) to London yesterday, he (met/would meet/had met/would have met) his old friend.
6) I will lend them some money if they (ask/will ask/asked/had asked) me.
7) If we had known who he was, we (would have invited/have invited/will invite/would invite) him to speak at our meeting. 
8) My dog will bark if it (hear/hears/heard/had heard) any strange sound.
9) If I (had/had had/will have/have) enough money, I would buy a house.
10) They (won’t let/not let/wouldn’t let/hadn’t let) you in if you come late.
11) If you (not go/don’t go/hadn’t gone/didn’t go) away, I’ll send for a policeman.
12) If I (were/am/be/was) in your place, I would accept Mr. Anderson’s invitation.
13) If I (win/had won/won/winning) a big prize in a lottery, I’d give up my job.
14) If I (is/am/was/were) you, I (will tell/told/would tell/would have told) the truth.
15) I was busy. If I (have/had/had had/have had) free time. I (would go/will go/would have gone/go) to the cinema with you.
16) Why didn’t you attend the meeting?
Oh, I did not know. If I (know/knew/had known/known) I (would come/would have come/will come/had come) there.
17) What (would/will/did/had) we do if they do not come tomorrow?
18) If I had enough time now, I (would write/write/will write/wrote) to my parents.
19) It’s too bad Helen isn’t here. If she (is/was/were/are) here, she (will know/knows/would know/would have known) what to do.
20) If I don’t eat breakfast tomorrow morning, I (will get/got/would get/had got) hungry during class.
21) If she (come/comes/came/had come) late again, she’ll lose her job.
22) I’ll let you know if I (find/finds/found/had found) out what’s happening.
23) If we (live/lived/would live/had lived) in a town, life would be better.
24) I’m sure he wouldn’t mind if we (arrive/arriving/arrived/had arrived) early.
25) We (will phone/would phone/phoned/had phoned) you if we have time.
26) If I won the lottery, I (gave/had given/will give/would give) you half the money.
27) It (will/would/can/may) be a pity if she married Fred.
28) If I’m free on Saturday, I (to go/could go/went/can go) to the mountains.
29) She (will has/had/will have/have) a nervous breakdown if she goes on like this.
30) I know I’ll feel better if I (will stop/stopped/stop/had stopped) smoking.
31) If I (am/were/will be/had been) you, I would help him.
32) I could have understood him if he (speaks/spoke/had spoken/would speak) more slowly.
33) He didn’t listen to the teacher. If he (listens/listened/has listened/had listened) carefully, he (will performed/would perform/would have performed/had performed) well in the examination.
34) He’s waiting for his mother to come back from Chicago. If his mother (come/comes/will come/came) home, he (will has/will have/has/had) a lot of presents.
35) He wanted to buy some Christmas presents but he couldn’t. If he (afforded/affords/had afforded/would afford) to buy, his children (are/were/would have be/would have been) very happy to greet a new year.
36) The kitchen will look better if we (have/had/had had/would have) red curtains.
37) If I knew his address, I (go/will go/would go/went) round and see him.
38) If you (hadn’t been/weren’t/aren’t/wouldn’t be) so busy, I would have shown you how to play.
39) It (will be/would be/were/been) quicker if you use a computer.
40) If we have some eggs, I (made/makes/will make/would make) you a cake.
II/Chia động từ trong ngoặc.
If I (know) that you were ill, I (go)to see you.
If she'd had enough money, She (buy)  a car.
I (buy)  a car If you lend me some money.
I (see) him if I (go) to the party last night.
We could have gone out if the weather (not be)so bad.
If the book (not be ) expensive, I'll buy it.
You would be very surprised if he (return)
I'll go out if it (not rain).
They wouldn't come to the party if you (not invite)....them
What you (do) .if you (be) ..him?
If that hat costs much, I (buy) .. a small one.
If you (drive) ...more carefully, you (have)  so many accidents.
If I (make) that mistake again, my teacher (get) angry with me
If I spoke English, my job (be)  a lot easier.
If he (go)  toLondon yesterday, he ( meet) his old friend
I will lend them some money if they (ask) me.
If we had known who he was, we (invite) .. him to speak at our meeting.
My dog (bark) if it (hear) any strange sound.
If I (have)  enough money, I would buy a house.
They (not/let)  you in if you (come) late.
If you (not go)  away, I (send)  for a policeman
If I (be)  in your place, I (accept) Mr. Huy’s invitation.
If I (be)  you, I (tell)  the truth.
I was busy. If I (have) free time. I (go)  to the cinema with you.
It’s too bad Helen isn’t here. If she (be) here, she (know) ..what to do.
If we (live) . in a town, life would be better.
I’m sure he wouldn’t mind if we (arrive) early.
We (phone) . you if we have time.
If I’m free on Saturday, I (go)  to the mountains.
She (have) ...a nervous breakdown if she goes on like this.
If I (be)  you, I (help)  him.
He didn’t listen to the teacher. If he (listen)  carefully, he (perform) well in the examination.
Unless you are more careful, you (have) an accident.
If you (like), I (get)  you a job in this company.
If grandmother (be) 5 years younger, she (play) .some games.
If he sun (stop)  shinning, there (be)  no light on earth.
If I (be)  a millionaire, I (live) on Mars.
III/ Viết lại câu.
He can’t go out because he has to study for his exam.
=> If ..
She is lazy so she can’t pass the exam.
If 
He will pay me tonight; I will have enough money to buy a car.
=> If .
He smokes too much; that’s why he can’t get rid of his cough.
=> If ..
She is very shy, so she doesn’t enjoy the party.
=> If ..
I will get a work permit. I will stay for another month.
=> If ..
He doesn’t take any exercises. He is so unhealthy
=> If .
We can’t get the ticket because I don’t have the right change.
=> If ..
Study hard or you won’t pass the exam.
=> If ..
Don’t be impatient or you will make mistakes.
=> If
I didn’t eat lunch, I feel hungry now.
=> If I..
It hadn’t rained, we would have a better crop.
=> But for.
If you want my advice,I would’t buy it.
=>If I  
I only come if they invite me.
=> unless
He didn’t revise all his lessons, he failed the exam.(revise: xem lại)
=> If he ..
His sister sent her money, so he continued to study.
=> But for
The park is over there, only 5 minutes’ walk.
=> If you walk
In case it rain, we’ll stay at home
=>If it 
Let me give you my advice. You should cut down on smoking right now.
=> If I 
20.Leave me alone or I’ll call the police.
=>Unless 
21.If you arrive at the office earlier than I do, please turn on the air-conditioner.
=> Should.
22.The children don’t go to school in the snowy weather.
=> If it 
You must tell me the whole truth or I won’t help you.
=> Unless
Don’t tell lies to your boss or you’ll be fired at once.
=> If 
IV/ Sửa lỗi sai:
1. If we will reduce the speed of population growth, there will be less pressure on the earth.
3. If we continue to use fuels at the current rate, we would soon have to face a fuel crisis.
4. If I am 10 centimeters taller, I would play basketball.
6. If she bought that house now, she ran out of money.
7. What you would do if you could speak French well?
8. If I had known he is not at home, I wouldn’t have gone all the way to his house.
10. If I were you, I will go to the dentist’s and have the tooth checked.