Ключевые слова: adult, affordable, america, american, animal, background, book, caucasian, class, college, colorful, concept, courses, destination, dog, education, educational, emotions, english, expressions, flag, funny, girl, guide, human, language, learn, listening, look, national, people, person, pet, portrait, pupil, quality, red, school, simple, smile, standard, student, study, studying, test, university, usa, woman, work, young,