—I expected him to be nervous before his speech, but he was as cool as a cucumber.—He it

发布时间：2020-08-17 04:34:10

—I expected him to be nervous before his speech, but he was as cool as a cucumber.
—He      it carefully.
A. could have prepared
B. shouldn’t have prepared
C. must have prepared
D. can’t have prepared

网友回答

A. could have prepared
B. shouldn’t have prepared
(答案→)C. must have prepared
D. can’t have prepared
解析：考查情态动词+完成式的用法：A.could have done过去可能做了什么B. shouldn’t have done本不该做而做了， C. must have done一定已经做了，D. can’t have done过去不可能做了，句意：--我以为他在演讲前紧张，但是他很冷静。--他一定准备的很充分。选C.
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