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【题目】Doctors always tell us that drinking too much________our healthbut some people don’t care.

A.is harm toB.does harmful to

C.is harmful toD.do harm to

【答案】C

【解析】

考查固定短语和主谓一致。句意:医生总是告诉我们,喝太多的酒会影响健康,但有些人不在乎。be harmful to sb/sth“对……有害处”,且本句为动名词做主语,所以be动词为is。故选C项。

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