Ключевые слова: adult, angry, attractive, back, background, book, books, caucasian, cheerful, class, college, education, frustrated, fun, funny, girl, graduate, guy, happiness, happy, hard, holding, homework, humor, humorous, knowledge, learn, learning, lesson, male, man, many, much, reading, school, smiling, stack, student, study, studying, teen, teenager, textbook, textbooks, tired, too, university, upset, young, youth,