1. haven't talked - will talk
2. waited
3. is fed
4. have the boys played
5. were playing - were watching
6. spoke
7. hasn't been washed
8. was written
9. is being built
10. be put
11. will be opened
12. have learnt
13. was written
14. had repaired - helped
15. burnt - was cooking
16. will snow
17. will be working
18. was being organized
19. will have left
20. will be handed
1. haven't - will talk
2. walked
3. is feeds
4. do the boys play
5. was playing - watched
6. spoke
7. hasn't been washed
8. was written
9. is being built
10. be put
11. will be open
12. have learnt
13. was written
14. repaired - helped
15. burnt - was cooking
16. will snow
17. will be working
18. had organize
19. will have left
20. will be handed