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17、The river beyond our school has become clean again as new measures are ______ to prevent it ______ any further.

A．taken; polluting                              B．taking; being polluted

C．taken; being polluted                          D．taking; to be polluted

17、C

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科目：高中英語 來源： 題型：

The river beyond our school has become clean again as new measures are ______ to prevent it ______ any further.

   A. taken; polluting                   B. taking; being polluted

   C. taken; being polluted            D. taking; to be polluted

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科目：高中英語 來源： 題型：

The river beyond our school has become clean again as new measures are ______ to prevent it ______ any further.

A．taken; polluting                              B．taking; being polluted

C．taken; being polluted                          D．taking; to be polluted

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