Ключевые слова: academic, boy, brunette, casual, caucasian, class, classmate, classroom, concentrating, concentration, desk, education, educational, exam, examination, focus, green, high, holding, indoor, knowledge, learning, looking, male, paper, pen, people, person, school, schoolboy, schoolchildren, schoolwork, selective, sitting, student, study, studying, teen, teenage, teenager, test, two, university, waistup, writing,