Exercize 21 : Conditional
Sentences page 97 - 98
1. will understand
2. wouldn’t be
3. gives
4. could told.
5. could be
6. had
7. could stop
8. needed
9. could found
10. will enjoy
11. paint
12. were
13. writes
14. would permit
15. could spend
16. will accept
17. bought
18. had decided
19. would write
20. will leak
21. would study
22. ears
23. see
24. gets
25. turn
26. will become
27. would called
28. could talked
29. explained
30. spoke
Exercise 22 : Used to page
99
1. eating
2. eat
3. swim
4. like
5. speaking
6. studying
7. dance
8. sleeping
9. eating
10. eating
Exercise 23 : Would Rather
page 101 - 102
1. Stay
2. Stayed
3. Work
4. Studied
5. Not Study
6. Have
7. Stood
8. Not cook
9. Had not arrived
10. Have slept
Exercise 24 : Must/Should +
Perfective page 105
1. Should have had
2. Must have been
3. Must have damaged
4. Should not have packed
5. Must have studied
6. Should have studied
7. Must have been
8. Should have deposit
9. Must have forgotten
10. Must not have been studied
2. Must have been
3. Must have damaged
4. Should not have packed
5. Must have studied
6. Should have studied
7. Must have been
8. Should have deposit
9. Must have forgotten
10. Must not have been studied
Exercise 25 : Modals +
Perfective page 105 - 106
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. Should not have driven
10. It may have run
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. Should not have driven
10. It may have run