Chuyển thành câu bị động:
6. It was reported that the President had suffered a heart attack.
-> The President ........................................................................................
7. It is alleged that the man was driving at 110 miles per hour.
-> The man ................................................................................................
8. People know that the expedition reached the South Pole in May.
-> The expedition ......................................................................................
9. They showed that there was a fault in the equipment.
-> There .....................................................................................................
10. People consider that she was the best singer that Australia has ever produced.
-> She ............................................................................................................