◎ 题干
—Look, the paint is starting to come off ____ the wall is damp.
—Well, we'd better have the wall repainted some day.
[     ]
A. when
B. where
C. if
D. once
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—Look, the paint is starting to come off ____ the wall is damp.—Well, we'd better have the wall repainted some day.[ ]A. whenB. whereC. ifD. once…”主要考查了你对  【连接副词】【状语从句】  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。