摘要：定语从句的用法] 定语从句 知识要点:
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词汇用法
定语从句：代词/名词/数词﹢of which/whom
①I was given three books on cooking, _________ _________ _________ _________ I really enjoyed．(它们中的第一本)
② have many friends, _________ _________ _________ are businessmen．(他们中的一些)
③It is reported that two schools, _________ _________ _________ are being built in my hometown, will open next year．(它们两个)