They received demands that the work ________ at once.
A．must be done
B．would be done
C．had been done
D．be done
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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 received demands that the work ________ at once.A．must be doneB．would be doneC．had been doneD．be done…”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。
◎ 相似题
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