Exercise 2: Put the verbs in brackets into the correct forms.
1. What will happen if my parachute (not open)……doesn't open……?
2. If she (need) ……needs……a radio, she can borrow mine.
3. What you (do) ……will you do………when you come to the party tonight?
5. If I lend you 10 dollars, when you (repay) ……will you repay… me?
6. Unless you are more careful, you (have) ……will have…an accident.
7. Ice (turn) ……will turn………to water if you heat it.
8. Unless I have a quiet room, I (not be able) …won't be able……to do any work.
9. He'll be late for the train if he (not go) ……doesn't go……at once.
10. Tell him to phone me if you (see) …see………him.
11. If he were in, he (answer) ……would answer………the phone.
12. If he worked more slowly he (not make) ……wouldn't make…so many mistakes
13. The plants will die unless you (water) ……water……them everyday.
14. Dial 113 if you (want) ……want… to call the police.
15. I’d take the lift if I (be) …were………… the man.
16. Unless we (preserve) …preserve… natural resources, the planet will be in danger.
17. If I see him, I (give) ………will give…… him a gift.
18. If I had a typewriter, I (type) ……would type….. the report myself.
19. If he (study) ……studies…….. hard, he can pass the exam.
20. Rice plants (grow) …will grow……. well if there is enough rain.