填:whose...is...has been

The new bike (whose) colour (is) white (has been )stolen.

句意: 颜色是白色的那辆新自行车已经被偷了.可以用whose？请问whose什么时候用呢？麻烦了！可以用whose呀! whose作定语,表示"某人的或某物的", 此句中的whose 表示"自行车的" 即: whose colour =the colour of the bike再如: He has a friend whose father is a doctor. 他有一个父亲是医生的朋友.That's the man whose house was burned down. 那就是房子被大火烧了的那个人.