every family will have their own robot中their是否用错?是否用his?

题目

every family will have their own robot中their是否用错?是否用his?

答案

没有用错,类似family, police这样的词,尽管从词半身的单复数上看是单数,但是由于它所指代的其实是一个集体、团体,所以应该用复数.