1. A
2. C
3. A
4. B
5. C
6. D
7. C
8. B
9. C
10. D
11. writes
12. won't visit
13. was
14. is saying/saying
15. I am fond of reading books/ iam into reading books
16. what about having a picnic in the park on the weekend?
17. Because Nam wants to get high marks in the final exam, he is trying his best
18. Does your room have a colorful licture?
19. How much time does Tina spend on watching television?
20. If you do not feel well, you should see the doctor