1. That house was destroyed by fire.

2. The lecture was attended by the students.

3. The contract will be signed by our boss.

4. He won't be asked.

5. A hamburger has been eaten.

6. The present has been opened.

7. The book hasn't been read.

8. English is spoken in almost every corner of the world.

9. The mail is delivered by Tom every day.

@  Như cute :3

1.Fire destroyed that house.

→ That house was destroyed by the fire.

2.The students attended the lecture

→The lecture was attended by the students 

3. The police easily captured the thief

→The thief was easily captured  by the police. 

4. My father is washing the car

→The car is being washed by my father 

5.The mailman is delivering the mail now

→The mail is being delivered by the mailman now