XIX. Change the sentences from the active to the passive. 1. They will open the new sports center soon. 2. Her mother woke Alice up at seven o'clock. 3. The boys walk the dog every day 4. An expert has valued the painting.…………………………………………………………...…..……………… 5. The hotel provides hot water 24 hours a day.………………………………………...…………………………………… 6. They invited us to a concert last Sunday.…………………………………  7. The police brought him here.  8. The students were writing the lessons. 9. People will build this building next year. 10. He didn’t type the letter last night. 11. My father hasn’t found his keys yet 12. He will solve the problem soon. 13. My father is washing the car.  14. We were painting the gate 15. I have opened the present. 16. The students are going to plant trees here 17. My mother is going to sell this house. 18. Tom delivers the mail every day.       19. The teacher corrects our exercises. 20. No one believes his story.

Phương pháp làm:

Để chuyển từ câu chủ động sang câu bị động, ta sử dụng công thức: S + will/shall + be + V3 (for simple future tense), S + will/shall + be + being + V3 (for future continuous tense), S + will/shall + have + been + V3 (for future perfect tense), S + V2 + to be + V3 (for other tenses).

1. The new sports center will be opened soon.
2. Alice was woke up by her mother at seven o'clock.
3. The dog is walked every day by the boys.
4. The painting has been valued by an expert.
5. Hot water is provided 24 hours a day by the hotel.
6. We were invited to a concert last Sunday.
7. He was brought here by the police.
8. The lessons were being written by the students.
9. This building will be built next year by people.
10. The letter wasn't typed by him last night.
11. His keys haven't been found yet by my father.
12. The problem will be solved soon by him.
13. The car is being washed by my father.
14. The gate was being painted by us.
15. The present has been opened by me.
16. Trees are going to be planted here by the students.
17. This house is going to be sold by my mother.
18. The mail is delivered every day by Tom.
19. Our exercises are corrected by the teacher.
20. His story is not believed by anyone.

Có nhiều cách làm khác nhau nhưng phương pháp chính là việc thay đổi thứ tự của các thành phần câu, thay đổi thì, và thêm giới từ "by" trước người thực hiện hành động (nếu cần).

His story is not believed by anyone.

Our exercises are corrected by the teacher.

The mail is delivered every day by Tom.

This house is going to be sold by my mother.