Many people are ________ as to what to do when there is a fire.A．at a lossB．at r

题型：不详难度：来源：

Many people are ________ as to what to do when there is a fire.

A．at a loss

B．at risk

C．at ease

D．at a distance

答案

A

解析

试题分析：此处at a loss不知所措； at risk 冒着生命危险； at ease轻松地；at a distance遥远地；久远地；句意：许多人当有火灾的时候不知所措。根据句意选A。