Помогите пожалуйста Раскройте скобки, употребляя глаголы в нужном времени
1. I_______ (wait) for my friend until he_______ (come) from the shop.
2. My father_______ (start) writing before the sun _______ (rise).
3. As soon as you _______ (finish) your study I_______ (present) you with a new flat.