1.John is sitting in front of Mary.
He Him 
2.Tim and I wash clothes every week.
They We
3.Bill and Robert run quickly. 
They Them
4.Ron and you look sad.
5.My parents punish my brother.
6.I don't like Susan and Jill.
they them
7.A teacher invites Sally and me to her party.
we us
8.
You and I are friends.
We Us
9.That boy eats ice-cream.
it its
10.
A bicycle is expensive.
It Its
