Don't park
Be quiet!
Take this medicine.
Wash your hands!
Close your book
Be careful. / Watch out.
Don't take pictures!
Don't use your phone!
Open/Close the window!
Turn off the light!
Don't run!
Don't turn left
Do your homework!
Turn right
Speak in English!
Clean your room!
Don't eat!
Don't stand up. / Stay there
Don't shout!
Open your book