◎ 题干

. Mary_____ to college last year. Unluckily, she couldn’t take the examination because of a sudden disease.
A must have gone   B can have gone    C should have gone   D could have gone
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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_____ to college last year. Unluckily, she couldn’t take the examination because of a sudden disease. A must have gone B can have gone C should have go…”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。