1. We used this car for our trips during summer holidays.
This car was used for our trips during summer holidays.
2. They didn't clean the bird cages at all.
The bird cages weren't cleant by them at all.
3. You could cut the branch off with this Swiss knife.
The branch could be cut off by you with this Swiss knife.
4. Too many tourists annoyed me when I was in Barcelona in August.
I was annoyed by too many tourists when I was in Barcelona in August.
5. They didn't tell us what to do about it.
We weren't told by them what to do about it.
6.Cars killed a lot of pedestrians in big cities.
A lot of pedestrians were killed by cars in big cities.
7. IT companies increased profits by more than ten percent last year.
Profits were increased by more than ten percent last year by IT companies.
8. He didn't expect us to help him with his homework.
We weren't expected by him to help him with his homework.
9. The police did a lot, but it was not enough.
A lot was done by the police, but it was not enough.
10. They didn't bring this laptop from Japan, I think.
This laptop wasn't brought by them from Japan, I think.
11. People couldn't save many houses after the storm last week.
Many houses couldn't be saved by people after the storm last week.
