Question

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

Answer 1

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。
考点：考查介词短语的用法。