Ключевые слова: academic, back, blackboard, board, book, books, chalkboard, class, classroom, clock, college, course, desk, education, exam, examination, exams, graduate, hardworking, high, hourglass, late, learning, lesson, man, management, out, preparation, preparing, punctual, punctuality, reading, research, running, sand, sandglass, school, science, student, study, studying, textbook, textbooks, time, timer, to, trainee, training, university,