Fortunately, someone who happened to be passing by called the fire department
the fire broke out.
A. hurriedly
B. quickly
C. instantly
D. shortly
网友回答
A. hurriedly
B. quickly
(答案→)C. instantly
D. shortly
解析：句意：幸运的是，火灾一爆发一些碰巧路过的人就打电话给消防队。这里用instantly做连词，表示“一…就”，A.hurriedly匆忙地，B.quickly快地，D.shortly不久，都是副词，不能做连词，所以选C。