a poster
That's a poster.
posters
Those are posters.
a picture
That's a picture.
pictures
Those are pictures.
a peg
That's a peg.
pegs
Those are pegs.
a table
That's a table.
tables
Those are tables.
a computer
That's a computer.
a pencil case
That's a pencil case.
a board
That's a board.
boards
Those are boards.
drawers
Those are drawers.
a cupboard
That's a cupboard.
balls
Those are balls.
a chair
That's a chair.
