◎ 题干
-I'm sure Andrew will win the first prize in the final.  
-I think so. He____for it for months.  
[    ]

A. is preparing  
B. was preparing  
C. had been preparing  
D. has been preparing

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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“-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…”主要考查了你对  【现在完成进行时】  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。