题目内容
. 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
D
句意: 如果牛顿还活着, 他会惊叹于今天科学技术的新发现。题干中what在从句中作主语, 又是动词discover的承受者, 所以要用被动语态, 据此排除A、C。又据题意中today以及惊叹的是到现在为止的发现, 便可推断要用现在完成时的被动语态, 故选D。
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