I didn’t see her in the meeting room this morning. She at the meeting.A. mustn’t have spo

问题补充：

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

A. mustn’t have spoken

B. shouldn’t have spoken

C. needn’t have spoken

D. couldn’t have spoken

答案：

A. mustn’t have spoken

B. shouldn’t have spoken

C. needn’t have spoken

(答案→)D. couldn’t have spoken

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