@Bơ Bơ
Cấu trúc thì hiện tạ hoàn thành:
(+) S + have/has + V3/ed + ___.
(-) S + have/has + not + V3/ed + ___.
(?) Have/Has + S + V3/ed + ___?
Bài tập III.
1. Have you ever won
2. have seen
3. Have you ever sung
4. has visited
5. have been
6. Has Tim finished
7. have lived
8. have just gone
9. have tried
10. Have you sent
11. have not seen
12. has just arrived
13. Have you ever been
14. have lost
15. have lost
16. has been
17. has taught
18. has had
19. has taken
20. Have you washed
