◎ 题干
Mary went to the box office at lunch time, but all the tickets __________ out.
A.would sellB.had been soldC.have been soldD.was selling
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“Mary went to the box office at lunch time, but all the tickets __________ out.A.would sellB.had been soldC.have been soldD.was selling…”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。