为什么英语中定语从句用which to buy,而不是to buy which是which one to buy和to buy which one

为什么英语中定语从句用which to buy,而不是to buy which是which one to buy和to buy which one 英语定语从句中什么时候要用in which? 定语从句中,什么时候用介词+which? 定语从句中什么时候用that,which 定语从句中如何使用whichHe was late for the opening ceremony,which was very surprising to me.为什么用which? They are all questions to which there are no answers这是个定语从语,为什么要用to which引导呢,which为什么就不行呢?而且to which在定语从句中什么成份啊?那么to which在从句里是代词,类似状语的成份啦 英语定语从句中which的用法有几种? 英语定语从句中that和which有什么区别 英语定语从句中怎样用who,whom,whose,that,which? 英语中定语从句介词+which=that吗 英语定语从句中that和which有什么区别 为什么这个英语定语从句中is倒装了could you please tell me which is the way to school?is能用在school后吗 英语从句语序 详见补充宾语从句 定语从句 状语从句 语序 还有一个小问题Could you tell me which the way to the hospital is 这句话为什么这么用 定语从句中where与which的区别?什么时候定语从句中用which,这个例句“This is a place which I have long wanted to visit.”中的“which”改成“where”为什么不行? .当关系代词在定语从句中做表语 ,为什么用that 不用which 定语从句中什么时候必须用that不能用which?为什么? 一道英语从句的题,The topic,_____ we devoted a full discussion,is to be presented to our teacher at class.[ ]A.whichB.whereC.to which D.for which 说是定语从句,可是定语从句中介词+关系代词不是等于关系副词吗?为什么 定语从句中,什么时候用Which什么时候用of which in which on which