he had worked hard all the time, he failed the exam again. A. IfB. AsC. WhileD. Because

发布时间：2020-08-16 22:56:32

     he had worked hard all the time, he failed the exam again.
A. If
B. As
C. While
D. Because

网友回答

A. If
B. As
(答案→)C. While
D. Because
解析：连词辨析。While有一特特殊用法，=though。结合句意可知C正确。句意：尽管他一直很努力，但是他又一次考试不及格。
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