Ключевые слова: alarm, back, books, boy, child, childhood, children, class, classroom, clock, closeup, computer, copybook, cup, doing, education, exercise, group, hand, home, kid, knowledge, learn, learning, lessons, lifestyle, little, pen, pencils, people, person, prepare, pupil, school, schoolboy, schoolchild, september, sitting, smart, stationery, student, study, studying, table, task, time, tired, writing,