问题
选择题
The government has to close those small factories to prevent the water of the river ______.
[ ]
A. polluting
B. from polluting
C. being polluted
D. polluted
答案
答案：C
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The government has to close those small factories to prevent the water of the river ______.
[ ]
A. polluting
B. from polluting
C. being polluted
D. polluted
答案：C