Question

have you bought the book? (change the voice)

Answer 1

Heya friend!
Here's ur answer!

Have you bought the book?

Answer:

Has the book been bought by you?

Hope it helps!!☺
ThAnks! !☺

Answer 2

In a sentence with an active voice, the subject performs the action which is denoted by the verb. In other words, the subject is the doer of the verb's action. Whereas in a passive voice, the subject is not active but by the verb is acted upon.

Passive voice is the voice used to show an interest in the object or person who experienced the action rather upon the action performer. In passive voice, a subject is an important thing.

There when the above question which is in active voice when written in passive voice, it would be:

Has the book been bought by you?