What's that?
That's a cupboard.
What's that?
That's a pencil case.
What are these?
These are posters.
What's this?
This is a peg.
What's this?
This is a computer.
What are those?
Those are pegs.
What are these?
These are tables.
What are those?
Those are computers.
What's this?
This is a poster.
What's that?
That's a table.