单项选择题

It's hard for a smoker to ______ smoking.

A．give in
B．give on
C．give up
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单项选择题
There isn't ______ for you to fetch the ticket.
A．enough
B．enough time
C．time enough
单项选择题
It's ______ for us to go to bed now.
A．enough late
B．enough early
C．late enough
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