Exercise 1:
6. goes
7. works
8. aren't
9. will call
10. will come/help
11. work
12. won't
13. is going to call
14. will give
15. doesn't help
16. went
17. went
18. took
19. played
20. went

The following sentences:
21. walked
22. watched
23. weren't
24. has gone
25. has worked
26. has took
27. has played
28. hasn't gone
29. has walked
30. has watched
31. haven't been
32. have/been
33. have lived
34. fishing
35. swimming
36. eating
37. living
38. watching
39. meeting
40. going
41. listening
42. doing

Exercise 2:
1. fishing/is
2. finishes
3. does/do
4. won't play
5. arranging/helps
6. won't collect
7. went
8. moved
9. bought
10. didn't take
11. weren't
12. was
13. were
14. did they help
15. hasn't played

Exercise 3:
1. bored
2. unhealthy
3. making
4. diffirence
5. childish
6. will puppet