The old man warned us here, it’s dangerous.A.swimB. not to swimC. not swim

发布时间:2020-08-23 03:16:00

The old man warned us     here, it’s dangerous.
A. swim        B. not to swim      C. not swim

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解析:句意:这个老年人警告我们不要在这里游泳,很危险。warn sb to do sth 警告某人做某事,否定形式在不定式前面加not,故选B
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