Поставьте существительное с предлогом в притяжательный падеж.
1) the house of their parents
2.the books of my sister
3.the mother of her friend
4.the children of Mr.Black
5. The room of the students.

Раскройте скобки употребляя Present, Past ,Future, Simple.
1.your sister (to be) a student.
2.mother (to work) every day.
3.mike's brother (to go) to the exhibition next Sunday.
4.he(not to spend) last summer in the country.
5.my father (to go) on a business trip last summer.
6.she (not to play) chess every day.
7.he(to be) up early tomorron morning.
8.you(to be) at the theatre yesterday.
9. My brother usually (to get) up at seven o'clock .
10.she (to help) mother yesterday.

1. Their parents' house 2. My sister's books3. Her friend's mother4. Mr. Black's children5. The students' room1. Is2. Works3. Will go4. Didn't spend5. Went6. Doesn't play7. Will be8. Were9. Gets10. Helped