Drinking polluted _water the healthA do harm to B does harm to C is harmful for B does harm to
问题描述:
Drinking polluted _water the healthA do harm to B does harm to C is harmful for B does harm to
答
B与D 相同,答案就是does harm to
动名词作主语谓语动词要用单数,故排除A,而C的介词应该用TO ;
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