What is it?
OPEN your books!
What is it?
May I go to the restroom?
What is it?
Break time!
What is it?
Stand up! / Sit down!
What is it?
Open the door! / Close the door!
What is it?
Excuse me, may I come in?
What is it?
I'm sorry!
What is it?
Thank you! / You're welcome!
What is it?
CLOSE your books!