Answer:
1. is
2. can, has
3.can't, am
4. Does, does.
5. Do, do
6. doesn't
7. don't
8. Can
9. Do, Don't
10. Have, am
11. Does, Does, is, am, is
12. don't, is
13. are, don't
14. is, can't
15. don't
16. Can
17. doesn't
18. can
19. can't
20. doesn't
Explanation: