Active Voice and Passive Voice

Active Voice :

1 . My Mother helps Cristian and Iwan
2 . Harry is opening the windows
3 . Ali bit Iwan
4 . The dog was bitting the child
5 . Richard had hit the cat
6 . The woman will play those card
7 . Mr. Karman has closed the door
8 . My aunt will have hit the naughty boy
9 . She is writting the letter
10. John delivered the mail

Passive Voice :

1 . Cristian and Iwan are helped by mother
2 . The windows are being opened by Harry
3 . Iwan is bitten by Ali
4 . The child was being bitten by the dog
5 . The cat had been hit by Richard
6 . Those card will be played by the woman
7 . The door has been closed by Mr. Karman
8 . The naughty boy will have been hit by my aunt
9 . The letter is being written by her
10. The mail was delivered by John