(2007湖北22) 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
答案:D
解析:考查动词辨析。四个选项后都可接形容词作表语,但A、C两项是表示动态变化的动词,不符合句意;appear意为“看上去”,也不符合句意;stay calm保持镇静,stay用作系动词,意为“保持(某种状态)”。grow成长,变得;become变成。
句意:紧急事故接线员必须要总是保持冷静,而且要确保他们获得所有需要的信息以便传送救助。