Câu 3.
1.I was told that you were the architect in this city.
2.It was reported that the flowers were killed by frost./ The flowers were reported to be killed by frost.
3.I am informed that the director is going to take a business trip to England.
4.It was announced that the meeting was delayed until next week.
5.It was discovered that this cotton was grown in Egypt.
6.It is promised that the performance will start on time.
7.It is recommended that we should stay at the city center.
8.It was believed that Alice would pass the driving test./ Alice was believed to pass the driving test.
9.All the workers are notified that they will have to work extra hard this month.
10.I have been persuaded that they will go with me to the stadium.
11.It has been decided that the company will go to the beach together at the weekend.
12.It is thought that Maradona is the best football player in the 20th century./ Maradona is thought to be the best football player in the 20th century.
13.It is found that the job is not suitable for a girl like her./ The job is found to be not suitable for a girl like her.
14.It was explained that this powerful engine pulled the train.
15.I was told that his football team had played well last season.

Câu 4.
1.I had the gate painted last week.
2.She will have her car washed tomorrow.
3.They have the story told again.
4.John gets his shirt cleaned.
5.Anne has had her composition typed.
6.Rick will have his hair cut.
7.I will get a new dress made.
8.He had his car repaired.
9.She often gets the heater maintained.
10.They had the shoplifter arrested.
11.Are you going to have your shoes repaired?
12.I must have my teeth checked.
13.She will have her dog examined.
14.We had this photograph taken when we were on holiday last summer.
15.The Greens had their carpet cleaned.

1. I was told that you were the architect in this city.
2. It was reported that the flowers were killed by frost. / The flowers were reported to be killed by frost.
3. I am informed that the director is going to take a business trip to England.
4. It was announced that the meeting was delayed until next week.
5. It was discovered that this cotton was grown in Egypt.
6. It is promised that the performance will start on time.
7. It is recommended that we should stay at the city center.
8. It was believed that Alice would pass the driving test./ Alice was believed to pass the driving test.
9. All the workers are notified that they will have to work extra hard this month.
10. I have been persuaded that they will go with me to the stadium.
11. It has been decided that the company will go to the beach together at the weekend.
12. It is thought that Maradona is the best football player in the 20th
13. It is found that the job is not suitable for a girl like her./ The job is found to be not suitable for a girl like her.
14. It was explained that this powerful engine pulled the train.
15. I was told that his football team had played well last season.

Phần sau mình chỉ bik niu đay thuui
8. He had his car repaired.
9. She often gets the heater maintained.
10. They had the shoplifter arrested.
11. Are you going to have your shoes repaired?
12. I must have my teeth checked.
13. She will have her dog examined.
14. We had this photograph taken when we were on holiday last summer.
15. The Greens had their carpet cleaned.

Câu3
1.I was told that you were the  architect in this city
2.It was reported that the flowers were killed by frost./ The flowers were reported to be killed by frost.
3.I am informed that the director is going to take a business trip to England.
4.It was announced that the meeting was delayed until next week.
5.It was discovered that this cotton was grown in Egypt.
6.It is promised that the performance will start on time.
7.It is recommended that we should stay at the city center.
8.It was believed that Alice would pass the driving test./ Alice was believed to pass the driving test.
9.All the workers are notified that they will have to work extra hard this month.
10.I have been persuaded that they will go with me to the stadium.
11.It has been decided that the company will go to the beach together at the weekend.
12.It is thought that Maradona is the best football player in the 20th century./ Maradona is thought to be the best football player in the 20th century.
13.It is found that the job is not suitable for a girl like her./ The job is found to be not suitable for a girl like her.
14.It was explained that this powerful engine pulled the train.
15.I was told that his football team had played well last season.

Mấy câu này, chỉ cần áp dụng công thức rồi biến đổi là được bạn. Nếu ko ko nhớ thì xem công thức chuyển đổi này nhé
Bảng công thức các thì ở thể bị động:

Tense

Active

Passive

Simple Present

S + V + O

S+be +P2 + by + O

Present Continuous

S + am/is/are + V-ing + O

S+ am/is/are + being+ P2 + by + O

Present Perfect

S + has/have + P2 + O

S + has/have + been + P2 + by + O

Simple Past

S + V-ed + O

S + was/were + P2 + by + O

Past Continuous

S + was/were + V-ing + O

S+ was/were + being+ P2 + by + O

Past Perfect

S+ had + P2+O

S + had + been + P2 + by + O

Simple Future

S + will/shall + V + O

S + will + be + P2 + by + O

Future Perfect

S + will/shall + have + P2 + O

S + will + have + been + P2 + by + O

Be + going to

S + am/is/are + going to + V + O

S + am/is/are + going to + be + P2 + by + O

Model Verbs

S + model verb + V + O

S + modal Verb + have +P2

S + model verb + be + P2 + by + O

S + modal Verb + have been +P2

Xem chi tiết các trường hợp đặc biệt ở link này:
http://oxford.edu.vn/goc-tieng-anh/hoc-tieng-anh-cung-oxford/ngu-phap-tieng-anh-cau-bi-dong-622.html
Chúc bạn học tốt^^

Câu 4.
1.  I had the gate painted last week.
2. She will have her car washed tomorrow.
3. They have the story told again.
4. John gets his shirt cleaned.
5. Anne has had her composition typed.
6. Rick will have his hair cut.
7. I will get a new dress made.
8. He had his car repaired.
9. She often gets the heater maintained.
10. They had the shoplifter arrested.
11. Are you going to have your shoes repaired?
12. I must have my teeth checked.
13. She will have her dog examined.
14. We had this photograph taken when we were on holiday last summer.
15. The Greens had their carpet cleaned.