单项选择题

I was so familiar with her that I recognized her voice ______ I picked up the phone.

A．the moment
B．since
C．before
D．while
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单项选择题
Now it won't be long before we meet again, ______
A．will it
B．do we
C．won't we
D．does it
单项选择题
Speak louder so that you can make yourself ______.
A．heard
B．to hear
C．hearing
D．have been heard
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