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

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A. mustn’t have spoken
B. shouldn’t have spoken
C. needn’t have spoken
(答案→)D. couldn’t have spoken
解析：句意：今天早晨我没有在会议室看见她，她不可能在会上发言。mustn’t have spoken没有这个用法；shouldn’t have spoken表示不应该发言而发言了；needn’t have spoken没必要发言而发言了；couldn’t have spoken不可能发言。根据句意故选D。