根据句意,填入恰当的代词完成句子
This is a ruler.__________ is a red ruler.
That is her mother.__________ is a teacher.
That boy is dale.________ is my friend
--Is Mr Black __________ father?
--Yes,I'm ______________ daughter
I have many friends.__________often play soccer together.
There are three people in my family:my parents and ___________.
--Where are the boys?
--___________ are on the playground.