Conditional Sentence

Exercise 21, page 97

1. were understand
2. wouldn't have been
3. will give
4. would have told
5. would have been
6.  had 
7. could stop
8. was need
9. could have found
10. enjoyed
11. paint
12. were
13. has write
14. could have permitted
15. were spending
16. will accept
17. has buy
18. has decided
19. would have written
20. will leak
21. had studed
22. hear
23. see
24. get
25. turn
26. were
27. would have called
28. would have talked
29. has explain
30. spoke

exercise 22, page 99

1. eating
2. eat
3. swim
4. like
5. speaking
6. studying
7. dance
8. sleeping
9. eating
10. eating

exercise 23, page 101

1. stay
2. stayed
3. work
4. study
5. not study
6. have
7. stand
8. not cook
9. had not arrive
10. slept

exercise 24, page 105

1. must have had
2. must have been
3. must have damaged
4. should have not park
5. must have studied
6. should have studied
7. must have been
8. should have deposited
9. must have forgotten
10. must have not studied

exercise 25, page 105

1. I would
2. would have gone
3. may have had
4. should have done
5. must have forgotten
6. may have slept
7. might have had
8. could have lost
9. shouldn't have driven
10. may have run