1. rises...sets
2. asks.... to tell
3. cry
4. will you go ..... is
6. was studing
7. has just left 
8. has rained
9. rang/ had gone out
10. to stop
11. not to go
12. going/stayed
13. has been
14. go/promise/ not to tell
15. had worked
16. working
17. helping
18. had filled
19. had completed
20. went/ has worked