| 1. have eaten | 11. have bought |
| 2. has been | 12. have used |
| 3. has turned | 13. has already seen |
| 4. have always watched | 14. has fixed |
| 5. has given | 15. has opened |
| 6. has taught | 16. have finished |
| 7. has gone | 17. have had |
| 8. has started | 18. have bloomed |
| 9. has burned | 19. has begun |
| 10. hasn't arrived | 20. has rung |