单项选择题

A．Because it’s prohibited by the government.
B．Because it’s more inefficient than other alternative fuels.
C．Because it will destroy the ozone.
D．Because ft costs a tot to mass-produce.
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单项选择题
A．He fed the dog happily.B．He picked up the dog by the tips of its ears.C．He sat in a chair with the dog dangling beside him.D．He made people laugh by kissing the dog’s ears.
A．He fed the dog happily.
B．He picked up the dog by the tips of its ears.
C．He sat in a chair with the dog dangling beside him.
D．He made people laugh by kissing the dog’s ears.
单项选择题
A．They didn’t have a good talk.B．They weren’t able to take a walk.C．They decided to go by plane.D．They talked about geology.
A．They didn’t have a good talk.
B．They weren’t able to take a walk.
C．They decided to go by plane.
D．They talked about geology.
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