1) C

2) A

3) A

4) B

5) A

6) B

7) C

8) B

9) C

10) B

11) B

12) C

13) took ( Bạn xem lại đáp án)- câu này 100% mình trả lời đúng

14) A

15) A

#Answered by P.T

Chúc bạn học tốt

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A:to play. B: played. C: play. D: playing
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A: because. B:When. C:while. D:since
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A:is sent. B: are sent. C:send. D:are sending
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A:play. B: played. C:to play. D: playing
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A:see. B:seeing. C:đã. D:be seeing 
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A: many time. B: enough time. C:time enough. D:some time.
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