Question

she sang a song change the voice​

Answer 1

Explanation:

The verb changed to past participle form. 'She' the subject becomes the object and 'a beautiful song' the object "becomes the subject" of the passive sentence. The verb 'sang' transforms to its past participle form sung'.

Answer 2

Answer:

The song was sung by her.

Explanation:

The sentence "She sang a song" is given in active voice. When it is converted to passive, the object i.e. "The song" receives the action of the verb.

Thus the passive voice becomes " The song was sung by her."

'Was sung' is in the passive voice.