问题
单项选择题
When a fire（）at the National Exhibition, at least then priceless paintings were completely destroyed.
A.broke off
B.broke out
C.broke down
D.broke up
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
When a fire（）at the National Exhibition, at least then priceless paintings were completely destroyed.
A.broke off
B.broke out
C.broke down
D.broke up
参考答案：B