Ключевые слова: answer, application, background, black, box, business, check, checklist, choice, concept, customer, data, decision, document, draw, education, exam, felt pen, fill, form, icon, idea, list, manager, mark, office, option, paper, question, questionnaire, red, report, school, select, sheet, sign, solution, survey, symbol, test, text, vote, white, write,