Edward, you play so well. But I you played the piano.A. didn’t knowB. hadn’t knownC. don

发布时间：2020-08-14 23:15:16

Edward, you play so well. But I      you played the piano.
A. didn’t know
B. hadn’t known
C. don’t know
D. haven’t known

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(答案→)A. didn’t know
B. hadn’t known
C. don’t know
D. haven’t known
解析： 句意为：爱德华,你打得好。但我不知道你弹钢琴。所谈论的是指过去行为，故用过去式。
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