1. It is believed that the woman is 112 years old.

People believe that the woman is 112 years old.

The woman is believed to be 112 years old.

2. People believe that he worked very hard.

It is believed that he worked very hard.

He is believed to have worked very hard.

3. It is said that they work 14 hours a day

They are said to work 14 hours a day.

People say that they work 14 hours a day.

4. Someone thinks that Jim will return tomorrow 

It is thought that Jim will return tomorrow.

Jim is thought to return tomorrow.

5. People know that cars pollute the environment.

It is known that cars pollute the environment.

Cars are known to pollute the environment.

6. People believe that the robber has worked in the bank.

It is believed that the robber has worked in the bank.

The robber is believed to have worked in the bank.

7. Many people believe that she is an honest person

It is believed that she is an honest person.

She is believed to be an honest person.

8. They think that the president will arrive soon

It is thought that the president will arrive soon.

The president is thought to arrive soon.

9. It is reported that many passengers died in the crash

People report that many passengers died in the crash.

Many passengers are reported to have died in the crash.

10. It is expected that the prices will rise again this month

They expect that the prices will rise again this month.

The prices are expected to rise again this month.

Giải thích:

Impersonal passive:

It + tobe + said/ thought/ believed... + that + S + V

Personal passive:

S + tobe + said/ thought/ believed...  + to V< chia thì>

                    CHÚC CẬU HỌC TỐT :))