1. met
2. studied
3. travelled
4. has . . . yet
5. began
6. cycled
7. saw
8. has written
9. read
10. got
11. were watching, went
12. did . . . record
13. am working
14. Have . . . washed
15. entered, were writing
16. has been
17. has . . . come
18. postponed, rained
19. Did . . . have, did, ate
Chúc bạn học tốt ^^
