Question

who painted the walls: change it into passive voice

Answer 1

Hello mate !
_________

✩ ANS ✩

By whom were the walls painted ?

_________

Hope helps !

Answer 2

An active voice is one where the subject is the doer o the action.

A passive voice is one where the subject is not the doer of the action or verb, but is instead being acted upon by the verb.

Who painted the walls: when changed into passive voice is “ by whom were the walls painted?”