◎ 题干
— Why was the factory closed? 
— The workers have put down their tools and are refusing to work overtime unless they _____ extra for it.

A. will be paid
B. are paid
C. pay
D. are being paid
◎ 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“— Why was the factory closed?— The workers have put down their tools and are refusing to work overtime unless they _____ extra for it. [ ]A. will be paid B. …”主要考查了你对  【一般现在时的被动语态】  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。