主格She is my sister
He is reading a book now
I like watching TV
You are my friend
They are playing basketball
It is raining
We are going to school
宾格Don't make her cry.
I hate him
Don't blame me.
Where is your watch?
Their pursuits are of value
None of us is to blame.
所有格The book is hers
I was his best friend then.
The bike is mine
Is the book yours?
We will absolutely beat them
Her mother is our teacher.
its的不会了,呵呵……凑合看吧!