Question

【题目】Mr. Li asks the students __________________ in the river, because it’s too dangerous.

A. swim B. to swim

C. not to swim D. to not swim

Answer 1

【答案】C

【解析】ask sb. to do sth. ＂要求某人做某事＂；ask sb. not to do sth. ＂要求某人不要做某事。＂ 由 句意＂李老师要求学生们不要在河里游泳，因为太危险了＂可知C项符合题意。