I think students of grade nine should have classes in the weeken .It is well known to us that we have too much to learn .we have ontime too lose.we shouldsave our time.teached by teacher is a good way to study.So if we have class in the weeken ,we will have more time to be teached by the teached.We will make program.So i thinkwe should study on weeken.终于写好了,可以吗