单项选择题

The scientist will give us a talk ______ the moon.

A．for
B．in
C．on
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单项选择题
That'll be ______ important meeting, you mustn't miss it.
A．a such
B．such an
C．very
单项选择题
Tell me where ______ that medicine.
A．can we get
B．we can get
C．should we get
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