◎ 题干
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
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“Edward, you play so well. But I _____you played the piano. [ ]A. didn't knowB. hadn't knownC. don't know D. haven't known …”主要考查了你对  【一般过去时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。