pronouns ...
subject, object, demonstratives...
I live in New York.
Do you like playing tennis?
He doesn't want to come this evening.
She works in London.
It won't be easy.
We are studying pronouns at the moment.
You went to Paris last year, didn't you?
They bought a new car last month.
Give me the book.
He told you to come tonight.
She asked him to help.
They visited her when they came to New York.
She bought it at the store.
He picked us up at the airport.
The teacher asked you to finish your homework.
I invited them to a party.
This is my house.
That is our car over there.
These are my colleagues in this room.
Those are beautiful flowers in the next field.