Ключевые слова: answering, asking, boy, caucasian, cheerful, child, childhood, children, class, classmates, classroom, cute, desk, development, discussion, education, elementary, girl, group, hand, happy, junior, kids, knowledge, learn, learners, learning, lesson, listening, occupation, preteen, primary, pupil, question, school, schoolboys, schoolchild, schoolchildren, schoolgirls, schoolkids, sitting, smiling, students, study, studying, teacher, teaching, writing, young,