Please don”t make a noise . — ____ . I”ll be as quiet as a mouse .

You scold such a pupilwho always keeps silent so seriously that youhurt him.

The astronauts have to lie ________ the floor of the spaceship to fight against the great pressure during the flight.

Cocaine’s being often used as painkillers can give rise to the________belief that it is not an addictive drug.[ ]

her bag, she found a handkerchief just in time.[ ]