Mr. Li asks the stuednts in the river, because it’s too dangerous.
- A.to swim
- B.swim
- C.not to swim
- D.to not swim
答案
正确答案:C
知识点:非谓语动词-不定式

ask sb to do sth意思是“让某人做某事”。根据句意,河里游泳很危险,所以应该是不让学生们在河里游泳。正确答案为not to swim。

略
