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2. - It is believed that 13 is an unlucky number.

    - 13 is believed to be an unlucky number.

3. - It is said that John is the brightest student in class.

    - John is said to be the brightest student in class.

4. - It was reported that the President had suffered from a heart attack.

    - The President was reported to have suffered from a heart attack.

5. I knew that he had been told of the meeting.

6. -  It was declared that she won the competition.

    - She was declared to win the competition.

7. - It was rumoured that the man was still living.

    - The man was rumoured to be still living.

8. - It is thought that Jack London's life and writing's represent the American love of adventure.

    - Jack London's life and writing's are thought to represent the American love of adventure.

9.  - It was reported that the troops were coming.

    - The troops were reported to be coming.

10. - It was believed that the earth stood still.

      - The earth was believed to stand still.