单项选择题

The police still haven' t found her, but they' re doing all they ______ .

A．may
B．can
C．must
D．will
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单项选择题
It is reported that many a new house ______ at present in the disaster area.
A．are being built
B．were being built
C．was being built
D．is being built
填空题
The local government is （） (讨论) how to help the poor in the countryside.
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