Please ... quiet.
Please be quiet.
Do ... homework.
Do your homework.
Sit ....
Sit down.
Close the ...
Close the door
May I ... to the bathroom?
May I go to the bathroom?
Listen ... the teacher.
Listen to the teacher.
Stand ....
Stand up.
Raise your ....
Raise your hand.
Clean ....
Clean up.
Line ....
Line up.