— Why do you look so worried? — My MacBook Pro broke down and my paper________unfinished since. |
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A. was left B. has left C. left D. has been left |
根据魔方格专家分析,试题“— Why do you look so worried?— My MacBook Pro broke down and my paper________unfinished since.[ ]A. was leftB. has left C. leftD. has been left…”主要考查了你对 【现在完成时的被动语态】 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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