单项选择题

The new airport ______ if they had not stopped working on it.

A．would complete
B．had been completed
C．had completed
D．would have been completed
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单项选择题
It was when she was about to go to bed ______ the telephone rang.
A．that
B．when
C．then
D．while
单项选择题
She accused the man ______ breaking into her house.
A．of
B．at
C．for
D．with
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