—Who do you think will get the first prize? —Mary, of course. She ________ for the competition for months.
A．is preparing
B．was preparing
C．has been preparing
D．had 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“—Who do you think will get the first prize? —Mary, of course. She ________ for the competition for months.A．is preparing B．was preparingC．has been preparingD．…”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。
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