◎ 题干
– The kidnapped American captain was rescued from the Somali pirates(海盗).
-- But for the help of the US Navy, he _______ freed then.
A.may not beB.wouldn’t have been
C.wouldn’t be D.mustn’t have been
◎ 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“ – The kidnapped American captain was rescued from the Somali pirates(海盗). -- But for the help of the US Navy, he _______ freed then.A.may not beB.wouldn’t …”主要考查了你对  【虚拟语气】【情态动词】  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。