单项选择题

Doctors believe that lung cancer is caused ______ by smoking too much.

A．part
B．at part
C．in part
D．with part
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单项选择题
You should ______ this opportunity and try to make a good impression on them.
A．make advantage of
B．have advantage
C．take advantage of
D．find advantage of
单项选择题
We have to wait for them to ______ a solution to the problem.
A．up with
B．come with
C．come with up
D．come up with
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