Ключевые слова: alarm, announcement, back, background, black, book, class, classroom, clock, college, concept, desk, education, elementary, empty, exam, green, greeting, indoor, knowledge, learn, lesson, library, lovers, modern, month, nobody, primary, reading, room, school, season, sponge, student, study, studying, table, teach, text, time, training, university, watch, white, write,