◎ 题干
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. ---All the building materials have been washed away.
---So I have heard. But there was no sign ______ a heavy rain was on the way last night.
A.whenB.IfC.whichD.that
◎ 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“.. ---All the building materials have been washed away.---So I have heard. But there was no sign ______ a heavy rain was on the way last night.A.whenB.IfC.w…”主要考查了你对  【状语从句】【限制性定语从句】【主语从句】【同位语从句】  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。