单选题
Should the alarm sound, please ______ make your way to the rallying points, where safety wardens will direct you to the emergency exits.
【正确答案】
A
【答案解析】选择符合句意的副词。根据条件状语从句should the alarm sound,可判断(A)calmly(镇定地,冷静地)最恰当。向对方郑重地命令或指示时,一般用“please+动词原形”。