1. should
2. might
3. can
4. must
5. can
6. can
7. must
8. mustn't
9. should
10. should
11. should
12. -
13. should
14. should
15. must
16. mustn't
17. shouldn't
18. can/should
19. -
20. should
21. must
22. mustn't
22. should
23. mustn't
