题目内容
--Could you tell me____ so well?
--Without the teacher's help, it was impossible for me to get the prize,
A. how did you do it B. when you did it
C. why did you do it D. how you did it
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题目内容
--Could you tell me____ so well?
--Without the teacher's help, it was impossible for me to get the prize,
A. how did you do it B. when you did it
C. why did you do it D. how you did it