Ключевые слова: background, black, blackboard, board, business, chalk, chalkboard, checklist, concept, control, date, day, days, deadline, design, do, due, duty, efficiency, empty, everyday, execute, expectation, finish, goal, homework, lines, list, management, message, nobody, note, organization, plan, punctual, rationality, reminder, schedule, space, start, target, task, text, texture, time, timetable, to, week, work, write,