◎ 题干
How long do you suppose ______ we applied for the job ________ we had been trained .
A.has it been since ; for which B.is it before ; in which
C.it is when ; that D.it is since ; for 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“How long do you suppose ______ we applied for the job ________ we had been trained . A.has it been since ; for which B.is it before ; in which C.it is when ;…”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。