Grammar. Transform the sentences into the passive where it is possible.
1. The actors played the performance with great enthusiasm.
2. We heard some jazz from the next room.
3. Mom usually bakes a cake on Sundays.
4. We were planning a holiday at the week end.
5. The girls have been laughing at the joke more than fifteen minutes.
6. Everyone was speaking about that new thriller.
7. They will show the opera next month.