Question

【题目】— It’s dangerous to swim in this river.

— Yes, you are right. The government has warned people in it.

A. swimming B. not swimming C. not to swim D. swim

Answer 1

【答案】C

【解析】

句意：——在这个条河里游泳是危险的。——是的，你说的对。政府已经警告人们不要在它里面游泳。

warn sb not to do sth警告某人不要做某事，故此处用not to swim，故选C。