his mother gave me quite a few magazines , of which one is here for you to 为什么用of which one 而
问题描述：
his mother gave me quite a few magazines , of which one is here for you to 为什么用of which one 而
His mother gave me quite a few magazines , of which one is here for you to read this evening.为什么用of which one 而不用which one of
答
of which意为“在它们（即上文所说的“他的妈妈给了我很多的杂志”）当中,which 用来引导magazines的定语从句,是关系代词,of which即“在那些杂志当中”,one跟of which并没有连着,one is here for you意为“其中一本是给你的”.
看清句子结构,理解句意和其中的语法很重要.