Odpowiedź:
1. has, finished
2. did, finish
3. have just gone
4. went
5. did, study
6. have, sent
7. did, call
8. have not seen
9. has just arrived
10. have, ever been
11. did, enjoy
12.
13. have lost
14. has had
15. was he given up
16. bought
17. has taken
18. Jim did not want
19. did, wash
20. was
