Complete the sentences with the correct passive form of the verbs in brackets.

1. The new system to prevent car theft...... (not test) at the moment.
2. Luke decided to donate some of the money he...... (give) for his birthday.
3. My neighbour believes his car...... (steal) on Friday night.
4. If a bag...... (leave) somewhere at the airport, the police have to evacuate the terminal.
5. ........ (the community centre / open) recently?
6. I think the man....... (release) from prison next month.
7. At first, I couldn't understand anything that...... (say) in the room.