they的物主代词是什么

they的形容词性物主代词：their；

they的名词性物主代词：theirs；

双语例句：

they were all there except me.除了我以外他们都在那里。

2、 one by one they got out.

他们一个一个地走了出去。

3、 what are they up to?

他们安的是什么心?