单项选择题

A．Electric cars.
B．Increasing fuel efficiency.
C．California’s pollution laws.
D．Automobile safety.
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单项选择题
A．He drives too fast. B．His radio wakes her children up. C．He plays his guitar too loudly. D．His friends are too noisy.
A．He drives too fast.
B．His radio wakes her children up.
C．He plays his guitar too loudly.
D．His friends are too noisy.
单项选择题
A．By train and by car. B．By plane and by coach. C．By train and by bus. D．By bus and by plane.
A．By train and by car.
B．By plane and by coach.
C．By train and by bus.
D．By bus and by plane.
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