who who's whose 的区别是什么?

问题描述:

who who's whose 的区别是什么?

who " 谁”,如:Who is on duty today?
who's = who is " 是谁” 如:Who 's the tallest in your class.
whose 谁的,如:Whose book is it?
不明白的再问哟,请及时采纳,多谢!“”who " 谁”, 如: Who is on duty today?中的“on duty today“是什么?whois on duty today ? 今天谁值日?