在那边的足球是他们的.
The football overthere is theirs.
那个漂亮的吹风机不是我姐姐的,是他们的,我的好朋友.
That nice hair dryer doesn't belong to my sister,it belongs to my good friends.
问：她的书包在桌上,我的在沙发上,他的在哪?答：在他的椅子上.
Ask:Her bag is on the table,mine is on the sofa,where is his?
Ansser:It's on his chair!