Odpowiedź:
1. My sister cooks dinner every day. Dinner is cooked every day by my sister.
2. My father washes the car on Saturday. The car is washed by my father on Saturday.
3. He played football yesterday. Football was played by him yesterday.
4. They drank milk yesterday. Milk was drunk by them yesterday.
5. We ate pancakes yesterday. Pancakes were eaten by us yesterday.