◎ 题干
— You don’t forget when we borrowed that reference book, do you?
— I can’t remember now but ________ sometime last week?
A.might it beB.could it be
C.could it have beenD.should it have been
◎ 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“— You don’t forget when we borrowed that reference book, do you?— I can’t remember now but ________ sometime last week?A.might it beB.could it beC.could it h…”主要考查了你对  【虚拟语气】【情态动词】  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。