He failed in the exam, proves that he wasn’t working hard enough.A. whichB. whatC. itD.

发布时间：2020-08-16 07:28:33

He failed in the exam,      proves that he wasn’t working hard enough.
A. which
B. what
C. it
D. that

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(答案→)A. which
B. what
C. it
D. that
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