◎ 题干

22. We know a good deal about the people who lived in China 4, 000 years ago, because they ______write and leave written records for those who lived after them.
A.couldB.shouldC.mustD.Shall
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“22. We know a good deal about the people who lived in China 4, 000 years ago, because they ______write and leave written records for those who lived after them.…”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。