Should not be opened while the phone sound. The teachers are doing in teaching, because it makes my classmates did not concentrate in school when the phone rings, and it will make our friends and. Dear innocent
Do not turn on the phone for a while. Instructors are teaching It will make the room can not concentrate in class when the phone rang. And makes us friends To know
Do not open the phone while the teacher was teaching. They make friends in the NO concentration when the telephone rang, and will make us friends and learn knowledge.