◎ 题干
As she was singing,she suddenly _____,which  gave us a big surprise  .
A.broke downB.broke outC.took downD.got down
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“As she was singing,she suddenly _____,which gave us a big surprise .A.broke downB.broke outC.took downD.got down…”主要考查了你对  【动词短语】【动词】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。