Mặt bên tay trái :20) C .21) A .22) C .23) B .24) C .25) effective . 26) dissapointing .27) unpolluted .28) encouragements .29) True .30) True .31) False .32) True . 33) Ba suggested that they should travel to school by bus to save energy. 34) It is 9 months since she went out with him .35) He has been over 100 years old. 36) Nobody in this class is as well as miss Huong Tram. 

Mặt bên tay phải : 20) C .21) B. 22) C. 23) A. 24) D. 25) sightseeing. 26) dissapointed. 27) carefully. 28) freedom. 29) True. 30) False. 31) False. 32) True. 33) The children are looking for the circus. 34) I wish she talked less in class. 35) How long have you learnt english? 36) The teachet said that he will give me some exercises the following week 

21. A dump

garbage dump : bãi rác

22. B provided

23. B they all

24. C spoiled

25. effectively : Một cách hiệu quả

26. disappointed : thất vọng

27. unpolluted : không ô nhiễm

28. encouragement : sự khuyến khích

29. T

30. T

31. F

32. T

33. we travel to school by bus to save energy

34. 9 months since she last went out with him

35. is said to be over 100 years old

36. in this class is better than Miss Huong Tram

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20. C Why

21. B it is

22. B higher

23. A in

24. D information

25. sights

26. disappointed

27. carefully

28. freedom

29. T

30. F 

he is from Germany

31. F

32. T

33. forward to going to the circus

34. she didn't talk too much in class

35. have you learnt English

36. she would give me some exercises the next week