单项选择题

Many cities in the Southern part of the United States, have difficulty （） traffic when it snows.

A．kept
B．to keep
C．keeping
D．is being kept

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单项选择题

I shall （） entirely （） what my solicitor says.

A．go after
B．go about
C．go by
D．go off

单项选择题

I don't think I could （） another night without sleep.

A．put up
B．endeavour
C．stand
D．last

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