What is this?
This is a pen
....... an eraser
That is an eraser.
............ an eraser.
This is an eraser
............ a key.
That is a key.
.............. pencils.
These are pencils
......... pencils
Those are pencils
............. dictionaries
Those are dictionaries
............ is a ball
that is a ball
............. are elephants.
These are elephants
a / an ruler
a ruler
a / an egg
an egg
a / an umbrella
an umbrella
a / an hour
an hour
a / an chair
a chair
