Замените существительное с предлогом “of” существительным в форме притяжательного падежа 1. the wife of the teacher 2. the ball of the boy 3. the watch of my friend peter 4. the opinion of a student 5. the library of my father 6. the sister of his wife 7. the question of the teacher 8. the coat of the boy 9. the exercise-book of the student
2. The boy's ball
3. My friend Peter's watch
4. A student's opinion
5. My father's library
6. His wife's sister
7. The teacher's question
8. The boy's coat
9. The student's exercise-book