Ключевые слова: academy, adult, age, background, blackboard, blank, caucasian, class, classroom, college, communication, copy, course, department, education, explaining, female, giving, glasses, green, happy, indoors, intelligence, knowledge, learn, learning, lecture, lesson, middle, notebook, occupation, pen, person, portrait, profession, professional, professor, school, senior, showing, smiling, space, study, teach, teacher, text, tutor, university, woman, work,