Answer:
The sentence "They are listening to music" in the passive voice is:
Music is being listened to by them.
Step-by-step explanation:
To transform a sentence from active to passive voice, there are basically three steps to follow.
1. Identify the subject of the active voice. That subject will become the agent of the passive voice, preceded by the preposition "by". In the sentence we are analyzing here, it is:
they → by them
2. Identify the object of the active voice. That object will become the subject of the passive voice. In the sentence, it is "music".
3. Finally, identify the verb and its tense. In the passive voice, we must maintain the tense, but we also need to add "be" as an auxiliary verb. The main verb will be used in its past participle form:
(they) are listening → (music) is being listened to
Thus, this is what we have:
"They are listening to music" → Music is being listened to by them.