选哪个,请给出原因.A.proving B.proved C.was proved D.has been proved
The cause he had devoted himself to _______a perfect success.
人气：334 ℃ 时间：2020-01-30 09:55:02
解答
选B
句子主语是The cause ,“he had devoted himself to ”用来修饰主语,整个句子缺谓语,所以排除非谓语选项A,句子要表达的是“The cause ”本身显示出是一个完美的成功,而不是被证明成功,所以用主动,检查时态,也是正确的.选B
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