It is well known that _________ air and water are harmful to people’s health. A. pollute B. pollutin...
2022-10-18 11:32:31 131次 2015-2016学年北京东城区高二上学期期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It is well known that _________ air and water are harmful to people’s health.
A. pollute B. polluting
C. to pollute D. polluted
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