Ключевые слова: back, background, blank, checkered, children, clean, closeup, college, color, copybook, cover, diary, education, empty, exercise, homework, knowledge, learn, learning, lesson, message, nobody, note, object, office, page, paper, pattern, personal, pupil, school, sheet, simple, space, stationery, student, study, studying, supply, text, texture, top, university, view, wallpaper, work, worksheet, write, writing,