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
但是为什么不选B?
人气：243 ℃ 时间：2020-03-04 18:20:56
解答
B是过去完成时,它表示的是过去的过去,而显然我不知道发生在you played the piano之后,是played the piano 在先,我不知道在后而且他们都发生在过去.所以选A
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