◎ 题干
. — I sent him the dictionary by mail this morning .
—You ____ that; he''s coming tomorrow afternoon .
A.needn''t have doneB.didn''t have toC.needn''t do D.mustn''t do
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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 sent him the dictionary by mail this morning . —You ____ that; he''s coming tomorrow afternoon . A.needn''t have doneB.didn''t have toC.needn''…”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。