1. have eaten
2. have made
3. has started
4. have turned
5. Have- paid
6. has taken
7. have finished
8. Have- eaten
9. hasn't come
10. have worked
11. Have- been
12. haven't done
13. have just seen- has already..... (đoạn này bị che mất đề)
14. have just decided
15. has been
***
16. He hasn't gone abroad before.
17. She has driven since last month.
18. We have eaten since it started to rain.
19. I haven't had my hair cut since i left her.
