◎ 题干
—I didn’t see her yesterday,I looked for her everywhere,but couldn’t find her.
—Oh,but you  .She was working in the office.
A.must haveB.ought toC.ought to haveD.can’t have
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—I didn’t see her yesterday,I looked for her everywhere,but couldn’t find her.—Oh,but you.She was working in the office.A.must haveB.ought toC.ought to have…”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。