题目内容
【题目】________he can't understand is ________his son doesn't like the school.He is very upset about this.
A.That;why B.Why;that
C.What;why D.Whether;that
【答案】C
【解析】本句中有两个从句,前一个是主语从句,后一个是表语从句。understand缺宾语,选what,表语从句缺原因状语,选why。
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