Ключевые слова: app, application, background, board, business, casual, check, choice, class, college, communication, computer, concept, connection, course, desk, digital, education, electronic, exam, examination, happy, high, icon, information, institute, internet, laptop, learning, lesson, lifestyle, online, people, person, planning, research, school, smartphone, smiling, student, study, studying, tablet pc, technology, test, university, web, young,