1. finish
2. will begin
3. is going to rain
4. met
5. will be doing
6. will see
7. will get
8. does ... arrive
9. will have spent
10. will pay / am going to pay
11. will tell
12. is learning / learns
13. will be camping
14. is going to buy
15. will ... be working
16. will help
17. rings
18. Are ... going to use / Will ... be using
19. Are ... watching
20. will have arrived
