Question

【题目】My father warned me going to the West Coast because it was crowded with tourists.

A. by B. on C. for D. against

Answer 1

【答案】D

【解析】句意：我父亲警告我不要去西海岸, 因为那里挤满了游客。句中谓语动词warned和介词against搭配, 构成warn sb. against doing sth. 相当于warn sb. not to do sth, 意思是 “警告某人不要干某事”。