80 all，both，few，most，several，some

等+of＋whom/which

这种形式可以用于指人，也可用于指事物。见以下例句。括号中给出的是不那么正式的同义说法。

Her sons，both of whom work abroad，ring her up every week．

她的两个儿子，都在国外工作，他们每周都给她打电话来。

（Both her sons work abroad，but they ring her up every week．）He went with a group of people，few of whom were correctly equipped for such a climb．

他和一队人一起去了，其中没有几个人配有进行这样一次登山的适当装备。

（He went with a group of people；few of them…）

The buses，most of which were already full，were surrounded by an angry crowd．

公共汽车大多数都已经挤满了人，它们被愤怒的人群包围着。

（st of the buses were full，and/but they were surrounded by an angrycrowd．）

I met the fruit-pickers，several of whom were university students．

我遇到了摘水果的人们，其中有几个人是大学生。

（I met the fruit-pickers；several of them were…）

I picked up the apples，some of which were badly bruised¹．

我拣起那些苹果，其中有一些伤得很厉害。

（I picked up the apples；some of them…）

The house was full of boys，ten of whom were his own grandchildren．

屋子里挤满了小男孩，其中有十个是他自己的孙辈。（The house was full of boys；ten of them…）