◎ 题干
Because the shop ____, all the T-shirts are sold at half price.
A. has closed down
B. closed down
C. is closing down
D. had closed down
◎ 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“Because the shop ____, all the T-shirts are sold at half price. [ ]A. has closed down B. closed down C. is closing down D. had closed down …”主要考查了你对  【现在进行时】  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。