Ключевые слова: 1416, 5059, aframerican, african, afroamerican, assistance, boy, caucasian, class, classroom, community, concentration, desk, education, english, exam, exercises, expertise, girl, grammar, group, intelligence, learning, lecture, listening, math, men, multiethnic, occupation, people, positive, presentation, professor, russian, school, schoolgirl, senior, showing, sitting, student, studying, table, teacher, teaching, teenagers, training, tutor, university, young,