1,This house was built 100 years ago

=> They built this house 100 years ago.

2,These artificial flowers are made of silk.

=> They made these artificial flowers of silk.

3,The lessons are being written by the student now.

=> The student are writting he lessons now.

4,This job has to be done at once.

=> They have to do this job at once.

5,The animals at the zoo are fed twice a day.

=> They feed the animals at the zoo twice a day.

6,The operation is going to be perforned by french doctors.

=> French doctors are going to be performed the operation.

7,All the arrangements have been made.

=> They have made all the arrangements.

8,The villagers will be invited to attend the meeting.

=> They will invite the villagers to attend the meeting.

9,Our salary is going to be increased.

=> They are going to increased our salary.

10,When was this radio many factured.

=> When did they manufacture this radio?

11,The rice fields will have been ploughed by the end of this month.

=> They will have ploughed the rice fields by the end of this month.

12,Good progress has been made by john in his study

=> John has made good process in his study.

13,They couldn't be found any where.

=> We can't find them anywhere.

14,these boys aren't taught by mrs john.

=> Mrs John doesn't teach these boys.

15,noting had been moved until the police arrived.

=> They had moved nothing until the police arrived.

16,Is mathemas taughin this shool.

=> Does this school teach mathemas?

17,fortunately the machinery wasn't damaged by the accident.

=> Fortunately, the accident wasn't damage the machinery.

18,Please wait herewhile your buggage is being examined.

=> Please wait here while they examined your baggage.

19,The results of the contest are going to be announced.

=> They is going to be announce the results of the contest.

20,How are candles made?

=> How did they make candles?

*SORRY IF I MADE MISTAKES!!!*

~Chúc bạn học tốt~!

1. The crystal vase has been broken.

=> .someone has broken the crystal vase

2. He was brought up to be polite by his parents.

=> His parents brought him up to be polite

3. Some letters have been given to Mr. John by the secretary.

=> The secretary has given some letters to mr. john

4. Our door has been broken down.

=> someone has broken our door down

5. He had already been  given a ticket for illegal parking by the traffic warden.

=> The traffic warden had already given him a ticket for illegal parking 

6. Are you disturbed by listening to music?

=>Is listening to music disturb you

7. The paintings will be exhibited by the organizers till the end of the month.

=>The organizers will exhibite the paintings till the end of the month

8. The tests have been collected and the answers (have been) check.

=> They have collected the answers and have checked it

9. Death is more likely to be caused by a bee sting than a snake bite these days.

=> Bee sting is more likely to cause death than a snake bite these days.

10. We weren’t given instructions or shown what to do.

=> They weren't give us instructions or show us what to do 

Turn the following sentences into the active voice .

1 . When was this radio manufactured ?

-> When did they manufacture this radio?

2 . They coudn't be found anywhere .

-> People couldn't find them anywhere.

3 . Please wait here while your luggage is being examined .

-> Please wait here while I am examine your luggage.

4 . For a long time the earth was believed to be flat .

-> For a long time, people believed that the earth was flat.

Change these passive sentences into the active voice.

1.Many bridges will be built by the workers next year ....................the workers will build many bridges next year.....................

2.Nam is going to be invited to the birthday party by Hoa ...............hoa is going to invited nam to the birthday party.........................

3.English is taught by Miss Hong this year ...................miss hong teaches english this year......................

4.Flowers in the garden are cut by Lan's grandmother every mornings ....................lan's grandmother cuts flowers in the garden every mornings.....................

5.Rubbish mustn't be thrown carelessly by the residents ............................the residents mustn't threw rubbish carelessly.............

6.These doors should be shut before 9 pm ...............they should shout these doors before 9 pm..........................

7.A lot of work is done by the secretary every day ..............the secretary does a lot of work everyday...........................

8.Many lakes and rivers are polluted by pollution from factories ...........................pollution from factories pullute many lakes and rivers ..............

9.Many trees are cut down to make paper ........................they cut down many trees to make paper.................

I.       Change the following sentences into the active voice.

1.      The traditional “ao dai” used to be worn by most Vietnamese women.

                    Most Vietnamese women used to wear the traditional ''ao dai''.                                                                                                                           

2.      Some beautiful patterns have been added to the “ao dai” by fashion designers.

                                                      Fashion designers have added some beautiful patterns to the ao dai.                                                                                         3.      The “ao dai” was frequently worn by both men and women.

                                                                                                                                               Both men and women frequently worn the ''ao dai''

4.      Was she told to wear the traditional “ao dai” on her wedding day by her mother?

                              Did her mother tell her to wear the traditional ao dai?                                                                                                                 

5.      The “ao dai” has been mentioned in poems by poets for centuries.

                                                                                                                                               Poets have mentioned the "Ao dai" in poems for centuries

6.      The traditional “ao dai” musn’t be thrown away.

                                         You mustn't throw away the traditional ao dai.                                                                                                      

7.      Now fashion designers want the traditional “ao dai” to be changed.

                            Now fashion designers want to change the traditional ao dai.                                                                                                                   

8.      Ms Mai decided that her traditional “ao dai” should be kept.

                                                                                                                                               Ms Mai decided to keep her traditional ''ao dai''

9.      I should love my “ao dai” to be printed lines of poetry on.

                                                                                                                                            I   should love someone to print lines of poetry on my "ao dai".

10.  It is said that many Vietnamese women today prefer to wear modern clothing at work.

                 People say that many Vietnamese women today prefer to wearing modern clothing at work.                                                      

1. The painter displays all the paintings in the gallery.

2. Jim turns off the kettle.

3. Peter locked the door yesterday.

4. Was your parents taken you to the airport?

5. How often does Jane clean the room?

6. My brother will write a long essay.

7. My aunt arranged flowers beautifully.

8. Mr. Smith somtimes drives the new car to work.

9. People speak English all over the world.

10. Someone has opened the gate.

Giúp mik với ạ

1. Change the following sentences from active voice into passive voice. One example has been done for you.

a. The teacher will explain the lesson until all the students understand it.

the lesson will be explained by the teacher until it is understood by all the students

b. He has done his homework for hours but he hasn't finished it yet.

his homework has been done for hours but it hasn't been finished yet.

c. The brick-layers have been building a house in the village.

a house has been being built in the village by The brick-layers

d. My parents never make me work hard.

I am never made to work hard by my parents

e. One of my neighbors has stolen my bicycle.

my bicycle has been stolen by One of my neighbors

f. They were writing my address do my hair every day.

my address was being written do my hair every day.

g. How often do you take the dog out for a walk? Every fine hours.

How often is the dog taken out for a walk? Every fine hours.

h. My brother will give me a cat for my fifteenth birthday.

i will be given a cat for my fifteenth birthday by my brother

i. People rumoured that the King was afraid of his wife.

the King was rumored to be afraid of his wife.

2. Change the following sentences from the passive voice into active voice. One example has been done for you.

a. The flowers need watering.

you need to water the flowers

b. The documents will be sent as soon as possible.

they will send the documents as soon as possible

c. We are often shouted at work by our boss.

our boss often shouts us at work

d. The match has been cancelled due to the bad weather.

they have cancelled The match due to the bad weather.

e. Two department stores have been built in the neighbourhood this year.

they have built Two department stores in the neighbourhood this year.

f. I was made to wash the clothes by my mother.

g. She has her clothes made by a famous tailor.

h. It was believed that the earth was square.

i. He was rumoured to be mysterious.

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1. When bill was told of his transfer to our birmingham office, he simply refused____
a. to go 
b. going 
c. go 
d. goned

mình không hiểu câu 2 lắm, mình thấy nó thiếu thiếu cái gì á, mong bạn thông cảm hen