I think that students in the Academy fail because they dont pay attiontion or they just dont care.
Also they might not go to tutoring, if they do go they wouldnt be failing, then they wont be kicked out of this school. They might also be failing because they might be busy doing other work and they just focus on the other class or subject, so they can pass that one and then go to the other ones..

My favorite sport is basketball. It is fun to play with friends. The more you play the sport the more you get better at it. Also you can meet other people and play with them. There is also the great excercise you can get. Lastly, that you can beat other people if your really good.