Поставьте существительное с предлогом в притяжательный падеж. 1) the house of their parents 2.the books of my sister

1. Their parents’ house.2. My sister’s books. 3. Her friend’s mother. 4. Mr.Black’s children. 5. The students’ room.

1. Your sister is a student. 2. Mother works every day. 3. Mike\'s brother will go to the exhibition next Sunday. 4. He did not spend last summer in the country. 5. My father went on a business trip last summer. 6. She does not play chess every day. 7. He will get up early tomorrow morning. 8. You were at the theatre yesterday. 9. My brother usually gets up at seven o\'clock. 10. She helped mother yesterday.