◎ 题干
________ the police thought he was the most likely one,since they had no exact proof about it,they could not arrest him.
A.AlthoughB.As long as
C.If onlyD.As soon as
◎ 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 police thought he was the most likely one,since they had no exact proof about it,they could not arrest him.A.AlthoughB.As long asC.If onlyD.As so…”主要考查了你对  【状语从句】  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。