问题描述：
09汕头统考
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
这道题为什么选C,而不能选B
prevent from不是 " 使…不,防止…做"
那阻止河水不被污染,不是很正确吗
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
这道题为什么选C,而不能选B
prevent from不是 " 使…不,防止…做"
那阻止河水不被污染,不是很正确吗
问题解答：
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