◎ 题干
---- I ’m sure Andrew will win the first prize in the final.   
---- I think so. He     for it for months.   
A.is preparingB.was preparingC.had been preparingD.has been preparing
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“---- I ’m sure Andrew will win the first prize in the final. ---- I think so. Hefor it for months.A.is preparingB.was preparingC.had been preparingD.has been…”主要考查了你对  【一般现在时】【将来进行时】【过去完成进行时】【过去将来时的被动语态】  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。