...................... a computer
That is
.............. computers
These are
.............. computers.
Those are
............. a pencil case
This is
......... pencil cases
These are
................. pencil cases
Those are
...... a picture
That is
.............pictures
Those are
These are pictures
............my ruler
This is
.........bags
These are
.............a new board
This is
.............. new chairs
Those are
This is a poster
