Ключевые слова: achievement, agreement, background, billboard, black, blackboard, blank, board, box, business, card, chalk, chalkboard, check, checkbox, checklist, checkmark, choice, class, classroom, clipboard, communication, concept, confirm, confirmation, correct, cross, data, decision, design, do, document, educate, education, element, empty, form, frame, future, icon, illustration, important, information, knowledge, label, learn, lesson, letter, list, mark, meeting, memo, menu, message, nobody, note, notepad, number, object, objects, office, option, page, paper, paperwork, pattern, plan, priorities, project, questionnaire, red, remind, reminder, report, school, shape, sign, solution, space, study, studying, success, symbol, tasks, teach, test, text, texture, tick, to, to do, underscore, vote, white, wooden, work, write,