Ключевые слова: acceptance, agreements, answer, app, approve, assurance, assure, be of use, box, business, career, certificate, certify, check, checkbox, checklist, checkmark, choice, choose, client, concept, contract, control, correct, datum, document, exam, feedback, form, guarantee, list, management, manager, marketing, office, plan, quality, questionnaire, report, service, signs, standard, survey, symbol, task, tick, validation, vote,