Tiếng Anh 11 - Conditional sentences

 Conditional sentences
 Exercise 1: Put the verbs in brackets into the correct forms.
If I (have)...................time, I will write to him.
If it’s cold, I (need)........................a heavier coat.
What are you going to do if you (have)......................a holiday?
If I can go tomorrow, I (let)........................you know.
If I should meet Helen, I (give)........................her your message.
If flowers don’t get any water, they (die).............................
If I (get).....................a headache, I usually take some aspirins.
I will go to the party unless it (rain).........................
She will buy the car as long as it (not be).......................too expensive.
 Everything (be).......................provided you tell the truth.
 If he (come)........................., please tell him that I’ll be back in a few minutes.
 Don’t come if they (not call)...................you.
 If you (need)......................, why don’t you tell me?
 Suppose you (win)........................a lot of money, what would you do?
 If I got up earlier, I (not be)......................late for work.
 If I didn’t feel so tired, I (go).....................out with you.
 If you (not pass)................. the exam, would you take it again?
 If I (be)................. you, I would apply for the job.
 I could repair the car if I (have)....................the right tools.
 If I (study).....................hard, I would have passed the exam.
 If I (not be)......................busy yesterday, I would have visited you.
 She (go)........................to the university if she had had the opportunity.
 Suppose they had offered her a job, do you think she (take).....................it?
 If she hadn’t been ill yesterday, she (go)..........................to work now.
 If I (be)..................you, I wouldn’t have told him the truth yesterday.
 If today were Monday, I (not go)..........................to work yesterday.
 What would happen if you (not go)........................to work tomorrow.
 If I had gone to yoour party last night, I (be)...................very tired now.
 Exercise 2: Put each verb in brackets into a suitable tense.
Why didn’t you phone? If I (know).......................you were coming, I (meet)...
..............you at the airport.
It’s a pity you missed the party. If you (come)...................., you(meet)...............
my friends from Hungary.
If we (have) .....................some tools, we (be able) to repair the car, but we haven’t got any with us.
Thank you for your help. If you (not help)..................., I (not pass).................. the examination.
It’s a beautiful house, and I (buy)......................it if I (have)....................the money, but I can’t afford it.
I can’t imagine what I (do)....................with the money If I (win)..................the football pools or a lottery.
Mark isn’t a serious athlete. If he (train).................harder, he (be).............quite
a good runner.
8. If Claire (listen)...................to her mother, she (not marry)..................David in the first place.
9. It rained every day on our holiday. If we (not take)..................the television with us, we (not have)........................anything to do.
10. Jim is so untidy! If he (buy).......................some new clothes, he (not look) ......
...................so bad. 
 Exercise 3: Rewrite these sentences, beginning as shown, so that the meaning stays the same.
I don’t buy it because I don’t have enough money.
----> If I ........................................................................................................
I didn’t buy it because I didn’t have enough money.
----> I would..................................................................................................
There was a test yesterday. I didn’t know that, so I didn’t study for it.
----> If I ........................................................................................................
I’m busy right now, so I can’t help you.
----> I could...................................................................................................
He’s very thin, that’s why he feels the cold so much.
----> If he.......................................................................................................
I didn’t eat breakfast several hours ago, so I am hungry now.
----> If I..........................................................................................................
If John had played for our football team, we would not have lost the game.
----> Unless....................................................................................................
If I won a big prize in a lottery, I’d give up my job.
----> Unless....................................................................................................
If you don’t like this one, I’ll bring you another.
----> Unless....................................................................................................
 I’ll only help you if you promise to try harder.
----> Unless....................................................................................................
If she doesn’t work harder, she’ll lose her job.
----> She’ll..................................................................................................... 
You can use my car, but have to keep it carefully.
----> Provided................................................................................................
If the work is finished by lunch , you can go home.
----> Get.........................................................................................................
Keeping calm is the secret of passing your driving test.
----> As long as..............................................................................................
15.You must work harder or you won’t pass the exam.
----> You won’t..............................................................................................
 16. She must apologise to me or I’ll never speak to her again.
----> I’ll.........................................................................................................
Exercise 4: Rewrite these sentences, beginning as shown, so that the meaning stays the same. 
I didn’t have an umbrella with me and so I got wet.
 ----> I wouldn’t..............................................................................................
I’ll call the police if you don’t leave me alone.
 ----> Unless......................................................................................................
In the snowy weather we don’t go to school.
----> If..............................................................................................................
Without Jack’s help, I wouldn’t have been able to move the table.
----> If..............................................................................................................
You drink too much coffee, that’s why you can’t sleep.
----> If you.......................................................................................................
You press this button to stop the machine.
----> If..............................................................................................................
Make me some coffee, and I’ll give you one of my biscuits.
----> If..............................................................................................................
If you hadn’t told me about Sue’s hair, I wouldn’t have noticed.
----> Unless......................................................................................................
If you see Peter, tell him he should be here at 8.00.
----> If you should............................................................................................
I wouldn’t accept if you asked me to marry you.
----> If you were...............................................................................................
 Exercise 5: Rewrite these sentences, beginning as shown, so that the meaning stays the same. 
 Working so much will make you tired.
----> If...............................................................................................................
I regret drinking so much last night.
----> If only.......................................................................................................
What would you do if there was an earthquake?
----> Supposing ................................................................................................
If you do the shopping, I’ll cook lunch.
----> You...........................................................................................................
What would you do If you found some burried treasure.
----> If you were................................................................................................
If Pauline hadn’t been interested, the project would have been abandoned.
----> But for.......................................................................................................
If by any chance you find my wallet, could you let me know?
----> If you happen............................................................................................
I might be late. If so, Start without me.
----> If I.............................................................................................................
The fire was brought under control thanks to the night-watchman.
----> If it hadn’t.................................................................................................
Dick is in prison because a detective recognised him.
----> If a detective.............................................................................................