Change the passive verbs to active verbs.
Can you please tell me if these are correct or not?
1. The candles were lit by Father after we were called to dinner by him.
Father lit the candles after he called us to dinner.
2. A beautiful sweater was received by Kokila from her coworkers.
Kokila received a beautiful sweater from her coworkers.
3. Dolphins can be taught by their trainers to jump through hoops.
Trainers teach dolphins to jump through hoops.
4. When Linda cuts the grass, the power mower is used by her.
Linda uses the power mower when she cuts the grass.
5. After the car was bought by Fred, it was driven home by him.
After Fred bought the car, he drove it home.
6. The song had been sung by us so many times that it was known by heart.
We sung the song so many times it was known by heart.
7. Streets that run north and south are cleaned by the city on Tuesdays.
The city cleans the streets that run north and south on Tuesdays.
8. Aunt Ruby was called and she was wished a happy birthday by me.
I called Aunt Ruby and wished her a happy birthday.
3. Where will you add "can"?
6. Partially correct.
The others look fine.
3. Trainers can teach dolphins to jump through hoops.
6. We sung the song so many times we knew it by heart.
Is it correct now?
Writeacher may be away from her keyboard. 3 is still passive by adding "can." 6 looks fine now.
Almost. The simple past of "sing" is "sang," not "sung." Everything else is okay.
"can teach" is active.
"Can be taught" is passive.
Or ... to make #6 even better ...
We had sung the song so many times we knew it by heart.
1. Father lit the candles after he called us to dinner.
2. Kokila received a beautiful sweater from her coworkers.
3. Trainers teach dolphins to jump through hoops.
4. Linda uses the power mower when she cuts the grass.
5. After Fred bought the car, he drove it home.
6. We sung the song so many times it was known by heart.
7. The city cleans the streets that run north and south on Tuesdays.
8. I called Aunt Ruby and wished her a happy birthday.