◎ 题干
We often have to stay up for our study though we___ to have enough sleep.
A.toldB.have toldC.are toldD.are telling
◎ 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“We often have to stay up for our study though we___ to have enough sleep.A.toldB.have toldC.are toldD.are telling…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  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。