They must have finished the work by the end of last month, ______?A．mustn’t theyB．haven’t theyC．hadn’t theyD．didn’t they-高中英语-n多题

◎ 题干

They must have finished the work by the end of last month, ______?

A．mustn’t they

B．haven’t they

C．hadn’t they

D．didn’t they

◎ 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“They must have finished the work by the end of last month, ______?A．mustn’t theyB．haven’t theyC．hadn’t theyD．didn’t they…”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。

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