I didn’t see her in the meeting room this morning. She have spoken at the meetin

I didn’t see her in the meeting room this morning. She ______ have spoken at the meeting.

A. mustn’t      B. shouldn’t

C. needn’t      D. couldn’t

试题答案

D

解析:

couldn’t have done sth 表示对过去情

况进行推测，意为“过去不可能发生过某情况”。