Rewrite these sentences in the passive voice.

1 They have repaired many roads in my home town.
2 They are building a new sports centre at the moment.
3 They will also create a new aqua-park in the suburbs in the future.
4 They spend a lot of money on making the area greener.
5 They opened a new park with many facilities two weeks ago.
6 Last week they were also collecting ideas from the public about what else they could improve.