We must take measures to protect the environment from ______．A．pollutingB．being_刷题宝

题干

We must take measures to protect the environment from ______．

A．polluting

B．being polluted

C．polluted

D．pollute

上一题下一题 0.15难度单项选择更新时间:2012-06-27 10:54:36

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