Ключевые слова: assorted, background, book, business, busy, copy, document, education, effect, file, fold, form, grey, heap, high, indoors, information, letter, lot, many, material, nobody, note, object, office, order, page, paper, paperwork, piece, pile, report, research, school, sheet, sheets, space, stack, stationary, stone, stress, table, tall, text, white, work,