单项选择题

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
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单项选择题
I don't think you've heard of him before, ______
A．have you
B．haven't you
C．do I
D．don't I
单项选择题
Although it is raining hard, ______.
A．I am still going out
B．and I am still going out
C．that I am still going out
D．but I am still going out
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