Rewrite the sentences in the passive

Rewrite the sentences in the passive.
1. The men built the block of flats.
2. Beyoncé sings this song.
3. You are not allowed to smoke in here.
4. Couriers delivered these parcels.
5. Our manager made the decision.
6. People speak several languages in Switzerland.
7. Joe invited us to the party.
8. Jennifer sent the invitations.
9. They make BMW cars in Germany.
10. Viet Nam produces coffee.
11. We recycle paper here.
12. He repaired the door.