My sister gave me a record which is very interesting.从句中做主语的

My sister gave me a record which is very interesting.从句中做主语的 My sister gave me a record which is very interesting,改为两个简单句 My sister gave me a record which is very interesting 可不可以这样理 My sister gave me a record.The record is very interesting 怎样 He gave me a book which is interesting.怎样判断这里的which是做主语 直接代进 【The book】主语【 you gave me】定语从句做定语【 is】系动词【 interesting】表语 我的 The book that you gave me is very interesting.这句that是不是在从句中做 He gave me a book which is interesting.which指代的是不是a book 改为简 He gave me a book which is interesting. He gave me the book You gave me a book which is interesting.You gave me the book This is the record you gave me.This is a record.You gave me He gave me a book which is interesting.这句中a book是不是先行词 which