1. Proszę o zamianę zdań na stronę bierną, proszę o wytłumaczenie ;) 2. Does the zoo keeper feed the animals every morning at 6am? 3. Someone hat already turned on the lights by the time I got there. 4. They introduced a new course at the college last year. 5. The waiters served the main course when we arrived. 6. We will send your exam results to your home address. 7. Have they finished the decorations? 8. One person alone cannot do thio job. 9. Are they repaining the damage at the moment? 10. In Italy, they hold national ekctions every four years.