A useless principal

SMK Sri Sentosa's principal is a very lazy person. She tell us the last exam is very important for us, it will decide us next year will go what class. But now, she simply arrange the class for us, then we  hardworking for what!    Some people's mark is lowest than me but they go to the class is higher than me. this is unfear for the student that the mark is higher. If she don't know how to do, please she give to another person to do!!!