What's this?
Stand up.
Put your hand up.
What's this?
Take out your book.
Take out your pencil.
What's this?
Line up.
Stand up.
What's this?
Sit up straight.
Sit down.
What's this?
Sit up straight.
Pay attention.
What's this?
Take out a pencil.
Stand up.
What's this?
Stand up.
Sit up straight.
What's this?
Put your hand up.
Line up.