1 D

2 B

3 A

1 didn't buy

2 was

3 is drinking

4 have watched

5 didn't watch

6 listened

1 CAU HÕI NỮA 

17 A

18 D 

19 A 

20C

21C

22B

23C

24D

25B

26D

27A

28A

1. Slowly but surely

2.The pronunciation is the most difficult part of my studies

3.Yes, I do

1. Slowly but surely

2.The pronunciation is the most difficult part of my studies

3.Yes, I do

help mình pls mình cần nhanh :((