Question

Answer 1

9 A

10 B

11 D

12 B

13 C

14 A

15 B

16 B

17 C

18 B

19 C

20 D

21 C

22 A

23 didn't have to

24 are visited

25 are having

26 writing

V

1 internet

2 says

3 activity

4 addictive 

VI

1 B

32 C

33 Yes, there are

34 Because making mistakes is unadvoiable.....

35 which I posted 3 days ago hasn't arrived yet

36 she studies hard, she will fail the exam

38 saw him when I was a student

38 he spoke clearly, people would understand him