1. Christina will spend a whole year with her relatives, until her parents arrive from abroad.
2. A delegation of English students will arrive at our university by 11 (eleven) o'clock.
3.By the end of June, students must not only complete, but also defend their diplomas.
4. By the end of the year she will work at our university for ten years.
5. By the end of the summer Katya will be tired, and she will needs to rest. After all she will take the entrance exam in two weeks.
6. Olga has achieved good results in the English language, although in september she will have been studying for two years already.
7. Peter has always been fond of sports. Soon there will be five years as he is seriously engaged in swimming.
8. On saturday there will be a week as we are repairing the apartment.
9. I will not be able to going with you since I will spend the whole evening on the essay and will get very tired.
10. Next october it will be six years since they live in a new house.
11. Before the arrival of the train Vera will spend two hours in the waiting room.
12. Tina will cook a festive table all day.
13. It will not be easy to make a general decision. I think we will discuss this question for a long time.
14. To write a letter in English Alik will have to work with a dictionary for a couple of hours.
15. Until the end of the repair the tenants of this house will live in other houses.
Дальше не вижу