单项选择题

A．How to apply new technology to solving the pollution problem.
B．How to realize the serious environmental problems around us.
C．What are the bacteria that can eat petroleum and gasoline.
D．Chinese should take more measures to improve the natural environment.
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单项选择题
A．He lost consciousness.B．He was slightly wounded.C．He was seriously injured.D．He was buried under an icebox.
A．He lost consciousness.
B．He was slightly wounded.
C．He was seriously injured.
D．He was buried under an icebox.
单项选择题
A．Because the bottle was empty and useless.B．Because he wanted to lighten the load of his small plane.C．Because the bottle might be useful to the native Africans.D．Because he wanted to amuse the local tribe’s people.
A．Because the bottle was empty and useless.
B．Because he wanted to lighten the load of his small plane.
C．Because the bottle might be useful to the native Africans.
D．Because he wanted to amuse the local tribe’s people.
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