*when do you eat your breakfast? (change into passive voice0
*where does she keep her money? (change into passive voice)
*what do you see? (change into passive voice)
*which pen do you like? (change into passive voice)
*he is driving a car.(change into passive voice)
*why are you abusing him? (change into passive voice)
*who is singing a song? (change into passive voice)
*what are they doing? (change into passive voice)
*i have kept my promise.(change into passive voice)
*have you taken medicine? (change into passive voice)
*who has torn this letter? (change into passive voice)
*what have you done? (change into passive voice)
*why have you wound the watch? (change into passive voice)
*the cat drank all the milk.(change into passive voice)

You want 14 answers in return for 7 points ...
a generous offer of 1/2 point per answer.

Tell you what I'll do:  This site offers homework 'help', not an
easy supply of answers.  I'll answer the first 7, and that should
be enough help for you to answer the last 7 on your own. 

When do you eat your breakfast?    When is your breakfast eaten (by you) ?
Where does she keep her money?    Where is her money kept (by her) ?
What do you see?                              What is seen (by you) ?
Which pen do you like?                     Which pen is liked (by you) ?
He is driving a car.                             A car is being driven by him.
Why are you abusing him?                Why is he being abused by you ?
Who is singing a song?                     By whom is a song being sung ?

Take it !