问题
单项选择题
When a fire ______ at the National Exhibition in London, at least ten priceless paintings were completely destroyed.
A．broke off
B．broke out
C．broke down
D．broke up
答案
参考答案：B
解析： 本题测试固定搭配辨析。broke off意为“折断，停止”；broke out意为“(火或灯)熄灭”；broke down意为“分解”；broke up意为“破产”。