◎ 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. He ______ for it for months. [ ]A. is preparing B. was preparingC. had been preparing…”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。