〔8〕 命令文

（１）Hurry up!

（２）Please sit down.

（３）Please have a piece of cake.

（４）Be quiet here, please.

（５）Don’t say anything to anyone.

（６）Don’t be afraid to ask questions.

（７）Hurry up, and you will catch the train.

（８）Hurry up, or you will miss the bus.