Ключевые слова: adolescence, attentive, book, boy, caucasian, college, computer, concentration, course, desk, education, exam, examination, grade, guy, happy, home, homework, indoors, intelligence, kid, knowledge, learn, learning, lesson, male, man, monitor, notebook, one, paper, people, person, research, room, school, schoolboy, single, sitting, student, study, studying, teen, teenage, teenager, work, writing, young,