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I. Change into the Passive voice.
1. We paint our house every three years.
\(\Rightarrow\) Our house is painted every three years.
2. Years ago, people you oil lamps instead of electric lamps.
\(\Rightarrow\) Years ago, oil lamps were used instead of electric lamps.
3. They’re building several new shools in our town.
\(\Rightarrow\) Several new schools are being built in our town.
4. The boy knew that they were praising him.
\(\Rightarrow\) The boy knew that he was being praised.
5. We have set up a committee to investigate the matter.
\(\Rightarrow\) A committe has been set up to investigate the matter by us.
6. I noticed that they had not yet taken the wrecked car away.
\(\Rightarrow\) I noiced that the wrecked car had not yet been taken away.
7. Can we you an Indifinte Article before an uncountable noun?
\(\Rightarrow\) Can an Indifinte Article be used before an uncountable noun by us?
8. Someone must have dropped this watch in his hurry.
\(\Rightarrow\) This watch must have been dropped in his hurry.
9. They promised the workers higher wages.
\(\Rightarrow\) The workers were promised higher wages.
10. No one has ever asked me that question before.
\(\Rightarrow\) I have never been asked that question before.
I. Change into the Passive voice.
1. Our house is painted every three years.
3. Several new schools are being built in our town.
4. The boy knew that he was being praised.
5. A committe has been set up to investigate the matter by us.
6. I noiced that the wrecked car had not yet been taken away.
7. Can an Indifinte Article be used before an uncountable noun by us?
8. This watch must have been dropped in his hurry.
9. The workers were promised higher wages.
10. I have never been asked that question before.
1. Can this work be done by yourself ?
2. The work needn't finishing by you today.
3. Our visit had to be put off until later.
4. It was said that they were working overseas.
5. It is thought that overeating is the cause of many diseases.
6. It has been said that he is a man of action.
7. It is considered that the robber is hiding near his house.
8. It is said that they scored the goal for his tram in the match.
9. It is summered that she has married a scientist from English.
10. It is generally thought that life will be fought on other planets.
1. It is two years since she left university.
2. Laurence last saw her sister when she left for Japan.
3. The last time Lucky wore that dress was at Barbara's wedding
4. My mother has worked at this school for 25 years.
5. This is the first time I have been to this entertainment park.
6. The last time I heard from him was in August.
8. I have not played football since 1970.
9. We last saw Tom when he moved to Bristol.
10. Bob has not visited Vietnam before.
Mk tưởng câu 1 phải là "It has been two years since she left university" chứ nhỉ 
câu 4 đề bài đang còn thiếu nha
4, She has a headache after work every day. She work in a noisy ofice
Viết câu điều kiện loại 2:
1, People throw rubbish in the street. The street doesn't look attractive .
-> If people didn't throw rubbish in the street , the street would look attractive .
2, There are so many billboard in our city.People can't enjoy the view.
-> If there weren't so many billboard in our city , people would enjoy the view.
3, We turn on the heaten all the time. We have to pay 3 million dong for a month.
-> If we didn't turn on the heaten all the time, we wouldn't have to pay 3 million dong for a month.
4, She has a headache after work everyday.
-> She wouldn't have a headache after work everyday if she didn't work in a noisy office
5, I don't have a computer so I can't do this exercise.
-> If I had a computer , I could do this exercise.
6, I couldn't check your health because I'm not a doctor.
I could check your health if I were a doctor.
#Yumi
1. Even though has poor health, she works twelve hour a day
2. Some trees just been planted on the sidewalk
3. Mr. Long has worked in this company for five years
4. Mary suggested going out for lunch
1) Rewrite the sentences without changing their original meaning, usingnthe cues given
1. She has poor health, but she works twelve hours a day
=> Even though .her health is poor, she works twelve hours a day..
2. They have jush planted some trees on sidewalk
=> Some trees have .been planted by them on the sidewalk..
3. Mr Long started working in this company five years ago
=> Mr Long has .started working in this company for five years..
4. " Let' s go out for lunch ", Mary said
=> Marry suggested ..going out for lunch.
7.My old car is going to be sold.
8. She is our English teacher.
9. The window was broken by him.
10. She suggested I should have my hair cut.
1. Nick suggested going to the swimming pool.
2.My father told me to turn down the radio for him.
3. We have studied English for 4 years.
4. The whole city has been destroyed by an earthquake.
5. Ha asked Nga when will she visit Ha Noi.
6. English is spoken all over the world.
1. People have thought that the new prime minister is a good speaker.
--> The new prime minister ....has throught to be a good speaker..............................................................................
2. They report that the suspended gunman is in custody.
--> The suspended ........is reported to have been in custody.........................................................
3. People don't expect that the new party will win the election.
--> The new party .......isn't expected to win the election.........................................
4. The detective knows that the robber has left the city.
--> The robber .......is known to have had left the city................................................................................
5. People believe that giving encouragement is important at work.
--> Giving encouragement .........is believed to be important at work.......................................................................
6. People have known that drug addiction is dangerous.
--> Drug .....addiction has been known to be dangerous.........................................................................
7. They believe that the lunch will be delicious.
--> The lunch .....is believed to have been delicous................................................................................
8. People said that the robbery lasted half an hour.
--> The ...robbery was said to last half an hour.............................................................................
* Nếu sai thì thông cảm ạ *
II. Change into the Active voice.
1. You can’t be put in prison if you haven’t been tried.
\(\Rightarrow\) They can put you in prison if they haven't tried you.
2. I was told that she was going to be appointed manageress of the company.
\(\Rightarrow\) They told me that they were going to appoint her manageress of the company.
3. It was reported that fighting had started again in Pakistan.
\(\Rightarrow\) They reported that fighting had started again in Pakistan.
4. The teacher must have been upset by what you said.
\(\Rightarrow\) What you said must have upset the teacher.
5. Wasn’t that building built three months ago ?
\(\Rightarrow\) Didn't they build that building three months ago?
6. His sister has been offered a well-paid job at a publishing house.
\(\Rightarrow\) They have offered his sister a well- paid job at a publishing house.
7. Your salaries will not be increased this year.
\(\Rightarrow\) The company will not increase your salaries this year.
8. The problem might be discussed in the meeting if there is enough time.
\(\Rightarrow\) We might discuss the problem in the meeting if there is enough time.
9. The accident happened because the car has not been stopped in time.\(\Rightarrow\) The accident happened because the driver had not stopped car in time.
10. You can see that the dishes haven’t been washed.
\(\Rightarrow\) You can see that no one has washed the dishes.
1. They can put you in prison if they haven't tried you.
2. They told me that they were going to appoint her manageress of the company.
3. They reported that fighting had started again in Pakistan.
4. What you said must have upset the teacher.
5. Didn't they build that building three months ago?
6. They have offered his sister a well- paid job at a publishing house.
7. The company will not increase your salaries this year.
8. We might discuss the problem in the meeting if there is enough time.
9. The accident happened because the driver had not stopped car in time.
10. You can see that no one has washed the dishes.
1, This machine hasn't been used for ages.
2, This song has been sung by Peter.
3, The doctor has been paid a lot of money.
4, The eggs have been eaten.
5, The aircraft has been disigned by famous engineers.
6, Have the accidents been seen by several people?
7, I have been surprised by the news.
8, My watch has been broken by John.
Câu bị động ở thì hiện tại hoàn thành
1, They have not used this machine for ages
-> This machine hasn't been used for ages
2, Peter has sung this song
-> This song has been sung by Peter
3, They have paid doctor a lot of money
-> Doctor has been paid a lot of money
4, She has eaten all the eggs
-> All the eggs have been eaten by her
5, Famous engineers have designed the aircraft
->The aircraft has been designed by famous engineers
6, Have several people just seen the accidents?
-> Has the accidents has just been seen ( by several people) ?
7, The news has surprised me
-> I have been surprised by the news
8, John has broken my watch
-> My watch has been broken by John