vâng ạ 

walking -> to walk ( It takes / took sb time to V )

1. They' ve lived here for a long time but we've lived here longer(than) => they haven't lived here as long as us .. 2. He's eager. He wants to help us in any way he can => he's..who wants to help us in any way he can 

11 S + V ( chia thì TLĐ ) + unless + S + V ( chia thì HTĐ ) 

12 + 15 + 18 : Cấu trúc câu tường thuật : S + said + ( that ) + S + V ( lùi thì ) 

12 : HTĐ -> QKĐ , 15 S + is / am / are + going to + V -> S + was / were + going to + V

18 QKTD -> QKHTTD

13 : thì TLĐ , DH : in the future 

14 câu đk loại 2 

16 chia TLTD , DH : this time next week 

17 tường thuật mệnh lệnh : S + told + O ( not ) + to V 

19 By the time + HTĐ , TLĐ 

20 Thì TLHT

III. Put the verbs in brackets in the correct form:

11. You (not get) ____won't get_____what you want unless you work harder.

12. The teacher said this water (be) ______was___too contaminated to be used.

13. Development in medical science (help) __will help_____people live longer in the future.

14. If we had flying cars now. we (solve) __could solve_____the problem of traffic jams.

15. Anna said she (be) __was_____going to leave when Tom came.

16. My family (attend) ____will be attending___a flower festival this time next week.

1 7. The mother told her son (not behave) __not to behave_____:so impolitely. 1

8. Phong said that he (help) __had been helping_____his parents to clean the house at 4 A.M the previous day.

19. By the time you receive the letter. I (leave) __will leave_____for Paris.

20. By this time next summer, you (complete) _____will have completed__your final exam

2A , 3A nhé

watching 

Tìm ra chỗ sai trong câu

I suggest you should have -> pay ( Pay attention : Tập trung ) attention to your lesson