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 played cards with people all over the world.B．He played cards on the internet at first and later did other things with computer.C．He was fascinated by how the world changes.D．He understood the computer affected different areas.
A．He played cards with people all over the world.
B．He played cards on the internet at first and later did other things with computer.
C．He was fascinated by how the world changes.
D．He understood the computer affected different areas.
单项选择题
A．In a dress shop.B．In a shoe store.C．In a gymnasium.D．At a swimming pool.
A．In a dress shop.
B．In a shoe store.
C．In a gymnasium.
D．At a swimming pool.
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