◎ 题干
All of the flowers now raised here have developed from those_____ in the forest.  
[     ]
A. once they grew                            
B. they grew once  
C. who once grew                            
D. once grew
◎ 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 of the flowers now raised here have developed from those_____ in the forest.[ ]A. once they grew B. they grew once C.whoonce grew D. once grew…”主要考查了你对  【限制性定语从句】  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。