一.to whom：对谁
to:adv.到某种状态；〔特指〕到停止状态；关闭.★也常 ...
whom:pron.who 的宾格〔但在口语中常用 who 代替 ...
1.The person to whom it is issued may only use it .
它只能给买它的人使用.
2.To whom did she send the book
她把书送到谁那儿去了?
3.To whom is this patient in ward
这病人由谁监护?
二.for whom：为了谁 为谁做
for:1.〔表示目标、去向〕向,往.leave [sail ...
whom:pron.who 的宾格〔但在口语中常用 who 代替 ...
1.We cannot surrender the freedom of these people for whom we are responsible .
我们不能断送我们负有责任的这些人的自由.
2.He looked like a student for whom grammars are blank and dictionaries dumb .
他的面孔活象一个对于文法茫然无知,对于字典视同哑巴的学生.