I. Rewrite these sentences, beginning as shown, so that the meaning stays the same.
1. I don’t buy it because I don’t have enough money.
If I ........................................................................................................
2. There was a test yesterday. I didn’t know that, so I didn’t study for it.
If I .......................................................................................................
3. You can offer me more money, but I still won't sell the house to you!
Even ...................................................................................................
4. He’s very thin, that’s why he feels the cold so much.
If he .......................................................................................................
5. I didn’t eat breakfast several hours ago, so I am hungry now.
If I ..........................................................................................................
6. If I won a big prize in a lottery, I’d give up my job.
Unless ....................................................................................................
7. If you don’t like this one, I’ll bring you another.
Unless ...............................................................................................
8. Thanks to the skill of the surgeon, the child survived.
If it .................................................................................................
9. You can use my car, but have to keep it carefully.
Provided.............................................................................................
10. Keeping calm is the secret of passing your driving test.
As long as ..........................................................................................
11. I didn’t have an umbrella with me and so I got wet.
I wouldn’t .........................................................................................
12. Without Jack’s help, I wouldn’t have been able to move the table.
If.........................................................................................................
13. You drink too much coffee, that’s why you can’t sleep.
If you...................................................................................................
14. You press this button to stop the machine.
If..........................................................................................................
15. If you see Peter, tell him he should be here at 8.00.
If you should.......................................................................................
16. I wouldn’t accept if you asked me to marry you.
Were.........................................................................................
17. I regret drinking so much last night.
If only..................................................................................................
18. What would you do if there was an earthquake?
Supposing ..........................................................................................
19. What would you do If you found some buried treasure.
If you were................................................................................................
20. They were working in the rain all day, so they’re soaking wet now.
If they .......................................................................................................
21. If by any chance you find my wallet, could you let me know?
If you happen............................................................................................
22. Mark didn’t tell her it was a secret so she told Pam.
If Mark.................................................................................................
23. We didn’t go out for a walk because it rained.
Had ...............................................................................
24. I was not badly injured because I was wearing a seat belt.
If .....................................................................................
25. If you hadn’t helped me, I would have made a complete mess of this.
But ………………………………………………………………………
I. Rewrite the sentences，beginning as shown：
1. They don't have enough time so they cannot do me a favour.
If they had enough time, they could do me a favour.
2.I can't send you a postcard if you don't give me your address.
Unless you give me your address, I can't send you a postcard.
3. He lost his savings because he wasn't careful.
If he had been careful, he wouldn't have lost his savings.
4. If he were not so lazy，he would be more successful.
Were he not to be so lazy, he would be more successful.
5. If you had finished your work，you would have been awarded
Had you finished your work, you would have been awarded.
6. Bill never does anything unless you tell him what to do.
If you don't tell Bill what to do, he never does anything.