1.People rumored that there was a ghost in that house

->It was rumored that there was a ghost in that house

->A ghost was rumored to have been in that

2.Someone said that Jane would able to win the contest

->It was said that Jane would be able to win the contest.

->Jane was said to be able to win the contest

3. They  claimed that everything they said was true

->It was claimed that everything they said was true

->Everything they said was claimed to have been true 

4. They reported that there was a serious accident on the main road

->it was reported that there was a serious accident on the main road

->A serious accident was reported to have happened on the main road.

5.They don’t think that this camera costs that much

->It isn't thought that this camera costs that much.

->This camera isn't thought to cost that much

6. Did they claim that they had managed to solve the problem?

->Were they claimed to have managed to solve the problem?

->Was it claimed that they had managed to solve the problem

8. People  didn’t expect that the building collapsed after the storm

->The building wasn't expected to be collapsed after the storm

-> It wasn't expected that the building collapsed after the storm