Mong mọi người giúp em, tại em đang cần gắp ạ, cảm ơn

3. B not to behave
4. A her to lend 

S told/asked sb to Vnt
5. B S told/asked sb not to Vnt
6. C hadn’t eaten/the year before
7. A would
8. A is
9. C the day before
10. D he had to go then
11. D had been very tired the night before
12. B before
13. D had been helping
14. A to read/was/them
15. B John said it was hot and asked Mary to open the window
16. A will tell
17. B was
18. D would do/the following day
19. A following