Ключевые слова: announcement, back to school, banner, blank, board, boy, card, children, class, classroom, color, education, elementary, empty, english, fun, girl, group, happy, holding, holding banners, kid, language, learning, little, message, mock up, mockup, paper, people, placard, poster, primary, pupil, school, school children, schoolboy, schoolchildren, schoolgirl, schoolkid, sheet, sign, smile, student, teacher, woman, word, young,