题目内容
从所给的四个选项中选择最佳答案
Every means ______ prevent the water from ______.
[ ]
A.are used to, being polluted B.is used to, polluting
C.is used to, polluting D.is used to, being polluted
答案:D
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题目内容
从所给的四个选项中选择最佳答案
Every means ______ prevent the water from ______.
[ ]
A.are used to, being polluted B.is used to, polluting
C.is used to, polluting D.is used to, being polluted