单项选择题

She______ have missed the first bus, or she______ be here so early.

A．needn't, shouldn't
B．couldn't can't
C．shouldn't, mayn't
D．mustn't, wouldn't
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单项选择题
The fact______ English and computers are becoming more and more important in our daily life is known to us all.
A．That
B．which
C．as
D．/ (不填)
单项选择题
The building______ by the end of next year will be used as our teaching block.
A．to be completed
B．completed
C．being completed
D．having been completed
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