Question

【题目】The policemen hurried into the station ______ they heard the gunshot.

A. immediatelyB. at onceC. sinceD. then

Answer 1

【答案】A

【解析】

考查连接词。句意：警察一听到枪声就急忙赶到车站。A. immediately一……就……；B. at once立刻；马上；C. since自从；因为；D. then然后。本句为时间状语从句，表示“一……就……”，故选A。