◎ 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
◎ 答案
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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. Hefor it for months.[ ]A. is preparingB. was preparingC. had been preparing D. has b…”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。