问题
选择题
______ he had worked hard all the time, he failed the exam again.
A．If
B．As
C．While
D．Because
答案
答案：C
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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______ he had worked hard all the time, he failed the exam again.
A．If
B．As
C．While
D．Because
答案：C
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。