4.
听句子,用1,2,3........给下列句子标号
Please don't sit too close to the TV.
Please don't spit on the ground.
Please don't talk with your mouth full.
Please don't play computer games too often.
Please don't cross the road when the traffic light is red.
Please stand in line.
Please put up your hand if you want to say something.
Please plant more plants.