Răspuns:
1. The children weren't looker after properly.
2. The doctor was called for.
3. His odd behaviour couldn't be accounted for.
4. The house was broken into by burglars.
5. Don't speak until you're spoken to.
6. His bed hasn't been slept in.
7. John was laughed at.
8. His proposal was objected to.
9. The shed was set fire to.