单项选择题

I don't know whether you happen ______ , but I'm going to study in the U.S.A. this September.

A．to be heard
B．to be hearing
C．to hear
D．to have heard
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单项选择题
In order not to be disturbed, I spent three hours ______ in my study.
A．locking
B．locked
C．to lock
D．being locked
单项选择题
I can ______ you to the market in my car.
A．send
B．pick
C．ride
D．take
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