Chuyển các câu sau thành thể bị động

Chuyển các câu  sau thành thể bị động
1.  jim baked this cake yesterday
2. Tóm will give Anna a ride to school tomorrow
3. We gave Ann some bananas and some flowers
4. They moved the fridge into the living room
5. My father waters this flower every morning
6. John invited Fiona to his brithday party last night
7. Her mother is preparing the dinner in the kitchen
8. We should clean our teeth twice a day
9. Our teacher have explained the English grammar
10. Tom will visit his parents next month
11. The manager didn't phone the secretary this morning
12. Mary bought this beautiful dress last