used especially in questions when asking about which person owns or is responsible for something

Whose is this bag? 这是谁的包？

Whose bag is this? 这个包是谁的？

used for adding information about a person or thing just mentioned

Cohen, whose short film won awards, was chosen to direct the movie . 科恩，就是那个短片获奖的人，被选中导演这部电影。

There was a picture in the paper of a man whose leg had been blown off. 报纸上有一张照片，照片中那个男人的腿被炸掉了。

They meet in an old house, whose basement has been converted into a chapel. 他们在一所旧房子里见面，那所房子的地下室已经被改建成了一个小礼拜堂。

Fraud detectives are investigating the company, three of whose senior executives have already been arrested. 反诈骗侦探正在调查那家公司，该公司的3名高级管理人员已被拘捕。