填空题

People are beginning to realize the problem of (pollute) ______ is serious.

【参考答案】

pollution
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填空题
(see) ______ from the top of the mountain, the city looks magnificent.
单项选择题
A．Taking a Vitamin C.B．Having more rest.C．Relaxing herself.D．Giving up smoking.
A．Taking a Vitamin C.
B．Having more rest.
C．Relaxing herself.
D．Giving up smoking.
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