1. Somebody has stolen my camera.
My camera has been stolen.
2. Somebody has vandalised the bus stop.
The bus stop has been vandalised.
3. Shoplifters has burgled their house.
Their house has been burgled by shoplifters.
5. They've murdered three people.
Three people have been murdered.
6. The police have interviewed three suspects.
Three suspects have been interviewed by the police.