Change the voice: Will she not have sung the song?

Foundational Concept: To change an active voice sentence to passive voice, the object of the active sentence becomes the subject of the passive sentence. The verb form changes to a form of "to be" + the past participle of the main verb. For future perfect tense questions, the structure is "Will + object + not + have been + past participle + by + subject?"

Correct Option: "Will a song not have been sung by her?" correctly transforms the active voice question into the passive voice. "The song" (the object) becomes the subject, and the verb "have sung" becomes "have been sung." The interrogative structure is maintained.

• Option B: "Will she have not been sung a song?" incorrectly keeps "she" as the subject and does not form the passive voice correctly.
• Option C: "Will have a song not been sung by her?" has an incorrect word order for an interrogative sentence; "Will" should precede the subject "a song."