◎ 题干
—Do you know when the teacher _____ back tomorrow?
—Sorry, I don't know. If he_____ back, I will tell you at once.
[     ]
A. comes; comes
B. comes; will come
C. will come; comes    
D. will come; will comes
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“— Do you know when the teacher ______ back tomorrow? — Sorry, I don't know. If he ______ back, I will tell you at once. [ ]A. comes; comes B. comes; will…”主要考查了你对  【宾语从句】【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。