Reduce talk with friends in the classroom, and their son, David, and less teaching and more, for example, talk to your friends after school instead of talk during class, it will have three more works.
Reduce your friend in the classroom and less interested teachers teach more ผuog example, talking to a friend after school, instead of talking during class to make a few more works.
Talking with friends in the classroom to reduce less interested teachers and decay you teach more, for example, talking with friends after school for talking during the class so that there are three more. .