Ответ:

1. gets
2. ... dinner was still being cooked
3. had run
4. Has Jane ever heard this story?
5. comes
6. ...question is being discussed now.
7. had painted
8. will be published
9. how long have you had this book?
10. is done
11. hadn't wrote
12. Your bag isn't found yet?
13. when did he get this letter?....
14. doesn't come
15. will be working
16. was written
17. Tom has been writing this. .
18. she is writing
19. what were were doing when....
20. clock will be repaired