Ключевые слова: apple, book, boy, caucasian, child, children, close up, closeup, computer, connection, copy space, desk, distance, eat, educational, elearning, exam, exercise, girl, green, home, homework, information, internet, kid, knowledge, learn, lecture, lesson, letter, looking at camera, networking, online, pc, prepare, pupil, remote, school, schoolboy, schoolgirl, side view, social, student, study, tablet, teacher, touch screen, use, webinar, write,