1The gir are doing some toys.
= Some toys are being done by the girl
2. He drives car to bring vegetable to city.
= Car is drove to bring vegetable to city
3. Nguyen Du wrote" Kieu story.
"Kieu story is written by Nguyen Du
4. We will organive a party next Sunday.
A party will be organised next Sunday
5. He has done this exercise for 2 house.
This exercise have been done for 2 house
6. A little girl can sing English songs.
= English songs can be sung by a little girl
7. Cow was grazing grass on the farm.
Grass was being grazed by cow on the farm