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We must work hard to the environment from .A.protect; pollutionB.protect; being

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We must work hard to the environment from .A.protect; pollutionB.protect; being

We must work hard to ________ the environment from ________.

A.protect; pollution

B.protect; being polluting

C.prevent; been polluted

D.prevent; polluting

试题答案

A

标签：thetofromenvironmentmust

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