Question

which book do you want change into passive voice

Answer 1

Which book is wanted by you ?
Hope it helps

Answer 2

Which book is wanted by you

• This voice describes interest in the element that experiences a change, instead of the element that is performing the change.
• When the emphasis is on either the thing or the individual affected by the action, the passive voice is used.  
• It generally uses the word ed and receives the verb action.
• For example -  Active: Roy reads a novel.   Passive: A novel is read by Roy
• Thus, the correct sentence is - Which book is wanted by you