Chuyển câu chủ động sang câu bị động: The gir are doing some toys

Chuyển câu chủ động sang câu bị động:
1. The gir are doing some toys.
2. He drives car to bring vegetable to city.
3. Nguyen Du wrote" Kieu story.
4. We will organive a party next Sunday.
5. He has done this exercise for 2 house.
6. A little girl can sing English songs.
7. Cow was grazing grass on the farm.