Ключевые слова: american, asian, book, boy, brainstorming, children, chinese, classes, classmate, cognition, college, concentration, discussion, educational, female, french, friendly, friends, front, german, girl, group, informative, intelligent, library, literature, male, positive, preparing, read, russian, school, schoolboy, schoolgirl, schoolkids, science, smiling, student, studying, talking, teacher, teamwork, teenage, together, university, woman,