Li Ming is often late for   .The teacher is very angry with him.“   are you often late for school?" asks the teacher. "Because I often get up   ,”answers Li Ming.“Your    can wake you up(叫醒),”says the teacher.“Yes, you are   .But my clock doesn't  ,”says Li Ming. "Why you repair(修理)it?" asks the teacher again? "Oh, I don't want it to work  answers Li Ming. "If all of us are late for school,   do you like it?" says the teacher. "Oh, that's great! There will be   schools in the world," says Li Ming with a smile.