8、The old woman has two sons,one is a teacher.A.of who B.of whom C.of which D.of them选B 但我想知道为什么

问题描述:

8、The old woman has two sons,one is a teacher.A.of who B.of whom C.of which D.of them
选B 但我想知道为什么

空格是在one后面?
whom用来作为定语从句的引导词,代替one of them,them是宾格,所以用whom代替