单选题
I could never understand______.
A、
why did Jane do such a crazy thing
B、
why Jane does such a crazy thing
C、
why Jane has done such a crazy thing
D、
why Jane did such a crazy thing
【正确答案】
D
【答案解析】
解析:本题考查宾语从句。由连接代词who,whom,whose,what,which和连接副词when,where,why,how引导的宾语从句需要用陈述语气,主句是一般过去时,从句用相应的过去某种时态,故选[D]项。[A]项语序不正确;[B]项和[C]项时态不正确。
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