Ключевые слова: book, boy, casual, child, children, class, classmate, classroom, education, educational, elementary, exercise, face, female, friends, girl, group, help, homework, indoor, kid, learning, lesson, mistake, modern, notebook, people, person, point, portrait, primary, pupil, school, schoolboy, schoolgirl, selective focus, showing, sitting, solve, student, study, studying, teach, teacher, teenager, test, woman, young,