Ключевые слова: academic, background, black, blackboard, board, chalk, chalkboard, check, class, classroom, college, color, colorful, concentration, course, education, exam, examination, exams, grade, graduate, handwriting, high, institute, knowledge, learn, learning, lecture, lesson, message, object, passing, phrase, preparation, question, ready, scholarship, school, stress, student, study, surface, teach, test, university, you,