Ключевые слова: business, check, checkbox, checklist, choice, clipboard, color, colorful, concept, contour, design, document, education, exam, examination, fill, filled, flat, form, icon, illustration, isolated, line, linear, list, mark, note, office, outline, page, paper, pencil, plus, questionnaire, quiz, report, result, school, set, sheet, sign, success, survey, symbol, test, tick,