Ключевые слова: academic, activity, boy, cheerful, child, childhood, children, class, classmates, classroom, clever, desk, education, elementary, friendly, glad, happy, indoors, international, joy, junior, kids, knowledge, learn, learning, lesson, positive, preteen, primary, pupil, pupils, school, school kids, schoolchildren, smart, smile, smiling, students, study, studying, waist up, young,