Computers can do nothingBut once what to do, they show extraordinary power to do a great

发布时间:2020-08-16 17:20:27

Computers can do nothing.But once     what to do, they show extraordinary power to do a great deal.
A. to program
B. being programmed
C. programmed
D. having programmed

网友回答

A. to program
B. being programmed
(答案→)C. programmed
D. having programmed
解析:考查非谓语动词。动词program和逻辑主语they之间是动宾关系,且program发生在主句动词之前,要用过去分词表被动和完成,所以选C。
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