单项选择题

It is requested that every student ______ a paper on the rapid development of industry.

A．writes
B．wrote
C．writing
D．write
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单项选择题
If you don't ______ smoking you will never get better.
A．give off
B．give up
C．give in
D．give out
单项选择题
Nobody noticed the thief enter the house because the lights happened to______.
A．be put up
B．give in
C．be turned on
D．go out
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