题目内容
John hasn’t come yet, I don’t know _____.
A. what has happened to him B. when he came
C. what was wrong with him D. where is he
A
【解析】
试题分析:句意:John还没有来,我不知道他发生什么事了。根据语境可知用现在完成时,本题是what引导的的宾语从句,要用陈述语序和时态和主句保持一致;根据句意故选A.
考点:考查宾语从句。
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