1. He will come in an hour.
2. Wait a little, please, I will return in a few minutes.
3. We will finish school in a few years.
4. In two or three years everything will change.
5. I haven't been to Estonia since 2009. Next summer I will go there. I will spend the whole summer there and return to St Petersburg by the first of September.
6. Last Sunday we got up at sunrise and by seven o'clock we were ready to go. At ten minutes past seven we started. We went to the bus stop. There were few people at the stop: on Sunday people don't like to get up at sunrise. The bus arrived at the stop in ten minutes. We got on the bus to go to the railway station. In half an hour we were already there. At the railway station we met our friends on the platform. In an hour we were already in the country. We went to the woods. It was hot, but when we went into the woods, it became cool. We spent the whole day in the country and returned to town at sunset.
Дала волю своей фантазии, надеюсь твой учитель по английскому не умрет от голода, когда будет читать это :)))