Ключевые слова: 21, abstract, autumn, back to school, background, beautiful, birthday, black, blank, block, boss day, box, brown, business, businessman, calendar, celebration, concept, copy, cube, cubes, date, day, deadline, economy, event, happy boss day, holiday, letters, life, light, month, new, number, numbers, october, organiser, paper, play, season, september, show, table, time, wednesday, week, white, wood, wooden, year,