【正文】
ying the piano her father came back.WhileAnn Kate was making a dressthe telephone rang.Kate WhenWhileKate was playing with a puter,Ann knocked at the door.Kate Ann WhenWhilewhen/whilewe were talking, the teacher came in.they were sweeping the floor, the bell rang Jim was repairing his bike,Lin Tao came to see him.Han Mei was cooking dinner, Lucy called her. the girl were eating supper,their father came home.the twins were watching TV, somebody knocked on the door.WhileMake sentences:whilehe was driving round the corner ,the policeman shouted to him.WhileWhat often causes traffic accidents?What often causes traffic accidents? driver doesn’t obey(遵守 ) the traffic rules(規(guī)則 ).2.(1) The driver is too tired.3.(2) The driver is careless.4.(3) The driver drives too fast.