Ключевые слова: 1st, angry, beard, blackboard, class, classroom, college, concentrated, education, educational, exam, explaining, explorer, geographer, geography, globe, happy, home, informal, international, knowledge, learn, learning, lecture, lesson, male, man, map, mature, notes, occupation, pass, philosophy, professor, results, school, sit, sitting, student, study, studying, supplies, surprised, teacher, teachers, teaching, thoughtful, tired, troubles, write,