=>
15. C bộ sưu tập
16. C 20-minute breaks
17. D newspaper 
18. B How far : hỏi khoảng cách

III/
19. D Don't walk on the grass
20. C. blindman's bluff : bịt mắt bắt dê

IV/
21. in
22. sports
23. playing
24. rehearse
25. together
26. their

V/
27. will go
28. is coming
29. energetic 
30. collector
VI/
31. Minh learns to play the guitar in his free time.
32. Hoa is unhappy because she misses her parents and her friends.
VII/
33. What about going to the beach?
34. What a boring film!
35. My brother is good at singing pop songs.
36. Jack is taller than Timmy.