Who wrote the answer ? (Change into passive voice)
ABy whom the answer was written ?
BWho was written the answer ?
CThe answer was written by whom?
DWho had written the answer ?
ABy whom the answer was written ?
BWho was written the answer ?
CThe answer was written by whom?
DWho had written the answer ?
Related Questions:
Change into Active Voice:-
By whom was that issue solved ?
Turn into the Passive :
She knows the musician personally