A. Talk to your parents and let them know you want to have other activities. A healthy mind and body will do good to your study.

B. Try to make friends with your classmates. Be friendly to others. Don't look down upon others because they are not as good as you in study.

C. You don't need to do any exercise if you get high marks in your exercises.

D. Go to bed earlier at night. Concentrate on what the teacher says. If you have any questions, ask the teacher immediately.

E. Don't worry. Just take it easy. You will certainly make progress if you can keep it up.

F. You can have a talk with your teacher. Tell will how you are feeling about him. And make up your mind to work harder.