◎ 题干
Somehow, the old man had ________ a dangerous secret, one which could not be discussed in a room on a military base.
A.put outB.let out
C.set outD.cut out
◎ 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“ Somehow, the old man had ________ a dangerous secret, one which could not be discussed in a room on a military base.A.put outB.let outC.set outD.cut out…”主要考查了你对  【动词短语】  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。