23. Often he _________ sit for hours doing nothing at all when he was in low spirits.
A．should
B．would
C．might
D．Could
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◎ 知识点
根据n多题专家分析，试题“23. Often he _________ sit for hours doing nothing at all when he was in low spirits.A．shouldB．wouldC．mightD．Could…”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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