Industrial cities such as Chicago and Detroit have severely ____ the waters of the Great Lakes.( )(本题5.0分) A、 pollutions B、 polluting C、 pollutes D、 polluted

Industrial cities such as Chicago and Detroit have severely ____ the waters of the Great Lakes.( )(本题5.0分)
A、 pollutions
B、 polluting
C、 pollutes
D、 polluted

出自：许昌学院-行政管理-大学英语3

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