单项选择题

A．Because there are many developing nations.
B．Because people use so many motor vehicles.
C．Because we have more and more industry.
D．Because we are building more vehicles.
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单项选择题
A．To open a gallery.B．To buy some new clothes in a hurry.C．To add up the cost before going shopping.D．To lose weight before getting any new clothes.
A．To open a gallery.
B．To buy some new clothes in a hurry.
C．To add up the cost before going shopping.
D．To lose weight before getting any new clothes.
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