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 |
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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 |
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