Please          . The boy is studying.

—I’m leaving now.
—________ you turn off the lights and the computer.

Tony, ________, or you will get heavier.

Don’t _______ too much TV. It’s bad for your eyes.

—Would you please _______ near the river?
—Oh, sorry, I won’t.
A. not play B.don’t play   C. not to play

— Please don’t make a noise.
— ________ . I’ll be as quiet as a mouse.

— ______, please.                 
— K-E-Y.

_________ play in the street．It’s very dangerous．

       climb the tree! It’s too small. Come down quickly!

—Don’t forget to close the door after school.
— ________.