题目

—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：D 解析: D。根据句中的…will win the first prize in the final可知，决赛还没有举行，所以下文谈到的“准备”指的肯定是从过去一直持续到现在的情况，故用现在完成进行时。

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