题目内容
4. 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
4. D
4. D解析:考査动词时态和语态辨析。 句意:假如牛顿生活在今天,他会对当今 科技中的新发现感到惊异。从句中的谓 语动词应使用现在完成时的被动语态, 故选D项。
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