Question

5. They reported that there was a serious accident on the main road.
-->

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

-->

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

->

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

Answer 1

5. It was reported that there was a serious accident on the main road .

6. This camera isn't thought to cost that much .

7. Were they claimed to have managed to solve the problem ?

8. The building wasn't expected to be collapsed after the storm .

Answer 2

5. 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.

6. 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

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

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

Were they claimed to have managed to solve the problem

8. People didn’t expect that the building collapsed after the storm
-->It wasn't expected that the building collapsed after the storm

The building wasn't expected to have collapsed after the storm