除了關(guān)系代詞that外,所有的關(guān)系詞都可以引導(dǎo)非限定性定語從句,舉例如下：
Last night,I saw a very good film,which was about the Long March.昨晚我看了一部非常好的電影,那是關(guān)于長征的.
This letter is from my sister,who is working at a factory now.這封信是我姐姐寄來的,他現(xiàn)在在一家工廠上班.
I paid a visit to compony last month,where my brother are working.上個月我參觀了一家公司,我哥哥在那里工作.
My grandpa's childhood is bitter,when he lived a hard life.我祖父的童年是辛酸的,那時候他過著十分艱難的日子.