Question

If _______ to look after luggage for someone else, inform the police at once.

A. asked          B. to ask         C. asking       D. having asked

 

Answer 1

【答案】

A

【解析】

试题分析:考查非谓语动词。由结构分析可知前面部分是分词做状语，ask和句子主语之间是被动关系，所以用过去分词，此处也可以看做是状语从句if you are asked to look after luggage的省略。句意：如果有人让你照看行李，要立刻通知警察。

考点：考查非谓语动词。