题目内容
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 |
B
短语辨析。A. 折断,中断 B.爆发火灾战争等 C. 打破,折断 D. 分手,打碎。句意:当伦敦国家展览爆发火灾时,——故选B。
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