why引导的定语从句?答:3、“介词+关系代词”前可有some, any, none, both, all, neither, most,each, few等代词或者数词,构成some of which/whom等类似结构引导的定语从句。(重点:常考!) (1)He loved his parents deeply, of whom both are very kind to him. (2)In the basket there are quite many apples, some of wh...