问题补充：
When the fire，the people in the building lost their head and ran in all directions.
A. broke in
B. broke away
C. broke out
D. broke down
答案：
A. broke in
B. broke away
(答案→)C. broke out
D. broke down
解析：考查短语辨析。句意“当那场火灾发生时，大楼里的人们手足无措，朝四面八方跑开。”A“打断，闯入”；B“离开，从......退出”；C“爆发”；D“失败，分解，出毛病”。故选C。
