问题 选择题

If Newton lived today, he would be surprised by what _______ in science and technology.

A.had discovered

B.had been discovered

C.has discovered

D.has been discovered

答案

答案:D

考查时态。这里If Newton lived today 是一个虚拟条件从句,对后面主句的时间段没影响he would be surprised by what___ in science and technology 这个句子中,主语是what has discovered in science and technology, 这里的discover是延续到今的,至今为止所发现的科学技术,故选D。

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