=>

1.

- It is said that Arthur is very rich.

- Arthur is said to be very rich.

2. 

- It is known that he sleeps on a bed of nails.

- He is known to sleep on a bed of nails.

3.

- It is believed that he won a lot of money gambling.

- He is believed to have won  a lot of money gambling.

4. 

- It is said that he writes poetry.

- He is said to write poetry.

5. 

- It is assumed that another Moon landing will take place next year.

- Another Moon landing is assumed to take place next year.

6. 

- It is hoped that Dr Smith will chair the meeting.

- Dr. Smith is hoped to chair the meeting.

7.

- It is discovered that a mechanical fault caused the problem.

- A mechanical fault  is discovered to have caused the problem.

8. 

- It is revealed that ex-president Julius was a spy.

- Ex- president Julius is revealed  to have been a spy.

9. 

- It is discovered by scientists that there is water on Mars.

- Water on Mars is discovered by scientists.

10.

- It is believed that terrorists are operating in Berlin.

- Terrorists are believed to be operating in Berlin.

11. 

- It is expected that the space shuttle will return to Earth today.

- The space shuttle is expected to return to Earth today.

12.

- It is said that the King is making a good recovery.

- The King is said to be making a good recovery.