用人称代词中的主格I,you.he.she.it.和宾格me.you.him.her.it.各造一个句,在初一范围内

I am Tom.
You are Tom.
He is Tom.
She is Tom.
It is Tom.
You help me.
I help you.
He helps him.
He helps her.
We help it.

主格
I love you
you are my friend
he is your friend too.
she is my roommate.
it is a nice day.
宾格
let me help you
I love you
how about him?
this is her mother
just do it.