Bài 3:
1. are/ reaches
2. comes
3. came/ had left
4. flies
5. have decided/ would undertakes
6. would take
7. was
8. am attending/ was attending
9. arrive/ will wait
10. had lived
11. got/ had already arrived
12. see/ will see/ will have graduated
13. visited/ was
14. has been/ have not read
15. is washing/ has just repaired
16. Have you been/ spent
17. meet/ looks
18. will have been/ comes
19. found/ had just left
20. arrive/ will probably rain
21. is raining/ stops
Chúc bạn học tốt!