1.They will listen to music tomorrow.
-Who will listen to music tomorrow?
-What will they do tomorrow?
2.He comes back home at 6 p.m.
-Who comes back home at 6 p.m?
-What time does he come back home?
3.We had a happy holiday with our parents.
-What did we have with our parents?
-Who did we have a happy holiday with?
4.They are playing volleyball.
-Who are playing volleyball?
-Which sport are they playing?
5.She works very hard.
-Who works very hard?
-How does she work?