(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

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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
(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

(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.