单项选择题

A．Environmental protection.
B．Pest control.
C．House construction.
D．Fire prevention.
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单项选择题
A．Work on his paper after class.B．Postpone his meeting with Professor Green.C．Go swimming with his friends.D．Go to see Professor Green immediately.
A．Work on his paper after class.
B．Postpone his meeting with Professor Green.
C．Go swimming with his friends.
D．Go to see Professor Green immediately.
填空题
S4. Most human beings live a life or far beyond the present and the near future.
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