—Everyone in my class passed the exam.—Oh, really? It ________ difficult.A．can’t have beenB．needn’t have beenC．must beD．mightn’t be-高中英语-魔方格

◎ 题干

—Everyone in my class passed the exam.
—Oh, really? It ________ difficult.

A．can’t have been	B．needn’t have been
C．must be	D．mightn’t be

◎ 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“—Everyone in my class passed the exam.—Oh, really? It ________ difficult.A．can’t have beenB．needn’t have beenC．must beD．mightn’t be…”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。

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