Ключевые слова: adult, alphabet, answer, child, children, class, classroom, clever, community, conversation, desk, discussion, diverse, education, exam, female, group, hand, hands, happy, help, helping, indoors, information, kid, kids, learners, learning, listening, people, person, professional, question, quiz, raised hands, school, sign, sitting, smart, study, talk, talking, teacher, teaching, test, tutor, woman, woman happy, young, youth,