Ключевые слова: alarm, assistance, background, book, business, chalkboard, childhood, class, classroom, clock, college, color, composition, concept, copy, desk, doing, education, green, group, holder, homework, knowledge, learn, lesson, lifestyle, marker, nobody, note, notebook, notice, object, office, pencil, pencilbox, preparation, research, school, schoolwork, space, stationery, student, studying, success, supplies, table, text, textbook, university, wooden,