单项选择题

Never _______ to the U. S. A..

A．I have been
B．do I have
C．have I been
D．have I do
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单项选择题
I'd like to _______ your article with you when you are not busy.
A．go for
B．go over
C．go by
D．go after
单项选择题
A boy told the police man that he had seen a man _______.
A．to get on a car and drive off
B．getting on a car and drove off
C．get on a car and drive off
D．get on a car and drove off
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