Question

who wrote that book? change into passive voice​

Answer 1

Answer:

That book was written by whom.

Answer 2

The Passive voice of "who wrote that book" will be " the book was written by whom".

• When we want to emphasise the action (the verb) and the object of a sentence rather than the subject, we use the passive voice.
• This indicates that the subject is either secondary to the action or that we have no idea who or what the subject is.

Hence, the answer is as mentioned above.