pron. The possessive case of who or which. See Who, and Which.
pron. 谁的
1. Whose book is this on the table?
这本书是谁的在桌子上？
2. I met a girl whose brother is a musician.
我遇到了一个女孩，她的哥哥是音乐家。
3. Do you know whose phone is ringing?
你知道是谁的手机在响吗？