◎ 题干
It ________ be the postman at the door.It's only six o'clock.( 2011·江西)
A.mustn't B.can't C.won't D.needn't
◎ 答案
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◎ 解析
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◎ 知识点
    根据魔方格专家分析,试题“It ________ be the postman at the door.It's only six o'clock.( 2011·江西)A.mustn'tB.can'tC.won'tD.needn't…”主要考查了你对  【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。