◎ 题干
Tom wants to be a professor when he _________.
[     ]
A. grow up  
B. growing up  
C. grows up  
D. grew up
◎ 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“Tom wants to be a professor when he _________.[ ]A. grow upB. growing upC. grows upD. grew up…”主要考查了你对  【状语从句】【主谓一致】  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。