问题

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

正确答案是：

同类题型

Li Fang is always ready to help others when they are in troubleand he never theirrequest.

______, tears came to her eyes.

The old man often gets_____ there at six by bike.

It is easy to learn English well, isn’t it–_____. You should spend much time on it.

People are advised not to smoke at home, since passive smoking is ________ to people around them. Which is Not proper for the blank