单项选择题

I was really worried about you. You ______ home without a word.

A．mustn't leave
B．shouldn't have left
C．couldn't have left
D．needn't leave
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单项选择题
—Where is the new dictionary—It's on the top shelf, out of ______ .
A．reach
B．sight
C．touch
D．order
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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