单项选择题

--The cars give off a great deal of waste gas in the streets.
--Yes. But I'm sure something will be done to ______ air pollution.

A．reduce
B．remove
C．collect
D．warn
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单项选择题
While shopping, people sometimes can't help ______ into buying something they don't really need.
A．to persuade
B．persuading
C．being persuaded
D．be persuaded
单项选择题
We are all going to the games. Why don't you come ______
A．up
B．across
C．along
D．to
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