Ключевые слова: background, black, blank, box, business, check, checkbox, checklist, choice, color, computer, correspondence, cross, document, education, exam, examining, form, graphite, gray, hand, illustration, image, ink, letter, list, macro, mark, note, office, page, painting, paper, pencil, questionnaire, row, school, shape, sharp, solution, supplies, symbol, test, training, variation, voting, white, wood, wooden, writing,