Question

.Emergency line operators must always ______ calm and make sure that they get all the information they need to send help.

A．grow

B．appear

C．become

D．stay

Answer 1

D

stay意为“保持”,stay calm表示“保持冷静,镇定”。根据所提供的情景“make sure that they get all the information they need to send help”可判断出急救中心的接线员必须保持镇静,确保得到他们需要的全部信息,以便派送人们进行救护。grow 意为“渐渐变得”；appear 意为“显得,好像”；become 意为“变成,成为,转为,变得”。