单项选择题

A．We are making too many vehicles.
B．We have more and more industry.
C．There are too many developing countries.
D．People use too many man-made materials.
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单项选择题
A．15 points.B．30 points.C．45 points.D．75 points.
A．15 points.
B．30 points.
C．45 points.
D．75 points.
单项选择题
A．People enjoy shopping in them.B．People spend little time in them.C．People are more likely to buy something in them if time is limited.D．People spend too much time reading articles about quick cures sold in drugstores.
A．People enjoy shopping in them.
B．People spend little time in them.
C．People are more likely to buy something in them if time is limited.
D．People spend too much time reading articles about quick cures sold in drugstores.
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