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 |
从If Newton lived today, he would be surprised可以看出是对现在的虚拟,所以what从句表达的应该是现在的事实,可以排除 A和B,又因为 what和 discover是被动的逻辑关系,所以应该使用被动形式。 |
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