◎ 题干
--- Have you told him we have changed the plan?
I _____ have, but I haven’t done it yet.
A.mustB.ought toC.needn’tD.can’t
◎ 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“--- Have you told him we have changed the plan?I _____ have, but I haven’t done it yet.A.mustB.ought toC.needn’tD.can’t…”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。