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As time went on,his theory ______ to be true.
A.proved
B.is proving
C.is to proved
D.was prove
人气:466 ℃ 时间:2020-02-02 21:48:54
解答
选D prove的用法是 prove sth to be 所以应该是sth proved to be……
B,C都用的is 时态首先不对 went on 是一般过去时了
A用法错误
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