◎ 题干
He paid the boy £10 for washing the windows, most of _____ hadn't been cleaned for a year.
[     ]
A. these
B. those 
C. that
D. which
◎ 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“He paid the boy £10 for washing the windows, most of _____ hadn't been cleaned for a year. [ ]A. theseB.thoseC. thatD.which …”主要考查了你对  【关系代词】【定语从句】  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。