Question

Who told you the truth change into passive voice

Answer 1

Answer:

The truth is told by whom ?

Answer 2

Here is the correct answer:

By whom was the truth told?

Explanation

The verb in the sentence was Simple Past in the active voice form (told). When we convert the active voice of Simple Past into passive we use passive form equivalent to the active form. The passive form in Simple past is was/were+V3.  The object is made the subject and vice versa; and 'by' is removed.

Important Note

Note that ‘who’ changes into ‘by whom’ and ‘whom’ into ‘who’ in changing voice