定语从句例句简单

1、who指人在从句中做主语　　 (1) The boys who are playing football are from Class One. 在踢足球的男孩们是一班的.　　 (2) Yesterday I helped an old man who lost his way. 昨天，我帮助了一个迷路的老人.　　 2、whom指人，在定语从句中充当宾语，常可省略。（注...