（09海南29） Edward,you play so well.But I _____ you played the

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（09海南29） Edward,you play so well.But I _____ you played the piano.A.
（09海南29） 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

4．(2009年高考全国卷Ⅰ)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
解析：选A.考查时态.该题前一句为一般现在时.指此前不知,动词用一般过去时. 再答：

再问：好像明白点了，谢了

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