21.''What's your address?''

-I asked Lien what her address was

22.''I need to learn more new words

-Phong said he need to learn more new words

24.Lan is going to invite her friends to birthday party

-Her friends are going to be invited by lan to birthday party

26.Thomas Edition invented the electric light build

-The electric light buld was invented by thomas edition

27.''Do you speak any other languages,Mai?''

I asked Mai if she spoke any other languages

28.People speaks English in many countries

-English is spoken in many countries

29.The police has just caught the thief

-The thief has just been caught by the police

30.''Can you explain this word to me?''

She asked me if I could explain that word for her

I.change these sentences into the passive voice

1.thomas edisonn invented the electric light bulb

=> The electric light bulb was invented by Thomas Edison.

2.she makes coffee for her parents every day

=> Coffee is made for her parents every day.

3.people should send their complaints to the main office

=> Their complaints should be sent to the main office.

4.somebody might steal your car if you had left the keys in it

=> Your car might be stolen if the keys had been left in it.

5.a short circuit could cause the fire

=> The fire could be caused by a short circuit.

6.lan is going to invite her friends to her birthday party

=> Lan's friends are going to be invited to her birthday party.

I.change these sentences into the passive voice

1.thomas edisonn invented the electric light bulb

=> The electric light bulb was invented by Thomas Edisonn

2.she makes coffee for her parents every day

=> Coffee is made for her parents every day

3.people should send their complaints to the main office

=> Their complaints should be sent to the main office

4.somebody might steal your car if you had left the keys in it

=> Your car might be stolen if the keys had been left in it

5.a short circuit could cause the fire

=> The fire could be caused by a short circuit

6.lan is going to invite her friends to her birthday party

=> Her friends are going to be invited by Lan to her birthday party

11.My sister gave me a new pair of Jears on my fifteen birthday

-A new pair of jeans was given to me by my sister on my fifteen birthday

12.The worker are building a supermarket on our street

-A supermarket is being built by the worker on our street

13.Mary is sorry. She isn't on the beach now

-Mary wishes she was on the beach now

14.They have told their car to pay their dept.

-Their car has been told to pay their dept.

15.We are going to grow flowers in the front garden

-Flowers are going to be grown in the front garden

16.You mustn't use this machine after 5.30 pm.

-This machine mustn't be used after 5.30pm

17.I can't understand what he says

-I wish I could understand what he says

18.Lan bought some comic books for her brother

-Some comic books were bought by lan for her brother

19.We don't use this kind of cloth to make shirts

-This kind of cloth isn't used to make shirts

20.''Where do you learn English?''

She asked Lan where she learned english

chuyển sang câu bị đông

1 someone stole her purse

her purse was stolen

2, the IBM company many offer my sister a job soon

my sister is offered a job soon by the IBM company

3 Everybody should keep food in the refrigerator to keep it fresh

food should be kept in the refrigerator to keep it fresh

4 Lien could's open the door of the classroom

the door of the classroom could be opened by Lien

5 they should announce that news as soon as possible

that news should be announced as soon as possible

6 Phong has to return the scientific book to the library

the scientific book must be returned to the library by Phong

7 people must repair that old building

that old building must be repaired

8 somebody saw the unidentified flying objects last night

the unidentified flying objects were seen last night

9 you are supposed to send your application form to the university early

your application form must be sent to the university early

10 they found their room being in disordered arrangement

their room was found being in disordered arrangement

11 the war destroyed all the ancient constructions

all the ancient constructions were destroyed by the war

12the government will rebuild the Memorial Monument

the Memorial Monument will be rebuilt by the government

13 the students may elect Phong their leader

Phong might be elected their leader by students

14 Thu's younger brother dropped his plate of food onto the floor

Thu's younger brother's plate of food was dropped onto the floor

15 the teacher won't accept papers written in pencils

papers written in pencils won't be accepted by the teacher

16 the student are discussing about their new plan

the student's new plan is being discussed by them

17 the athletse might visit some interesting places after Sea Games

some interesting places might be visited by the athletes after sea games

1:Someone cleans this room everyday.

This room is cleaned everyday.

2:Nobody has invited her to the party.

She hasn't been invited to the party. 

3:Somebody has driven them to the airport.

They have been driven to the airport.

4:People should send their complaints to The head office.

Their complaints should be sent to the head office. 

5:They are introducing the game to students.

The game is being introduced to students.

Rewrite the sentences below so that the meaning with the given sentence.
1. Lien couldn't open the door of the classroom.

=> The door of the classroom couldn't be opened by Lien
2. Phong has to return the scientific book to the library.

=> The scientific book has to be returned to the library by Phong
3. Somebody saw the unidentified flying objects last night.

=> The unidentified flying was seen last night
4. The war destroyed all the ancient constructions.

=> All the ancident construction was destroyed by the war
5. The government will rebuild the Memorial Monument.

=> The memorial monument will be rebuilt by the government
6. Thu's younger brother dropped his plate of food onto the floor.

=> his plate of food was dropped onto the floor by Thu's younger brother
7. The teacher won't accept papers written in pencils.

=> papers written in pencil won't be accepted by the teacher
8. The students are discussing about their new plan.

=> the new plan are being discussed by the student
9. Lan's parents have to clean up their house before Tet holidays.

=> their house has to be cleaned up by lan's parents before Tet holidays
10. My teacher asked me to be here at 10am

=> I was asked to be here at 10 am by my teacher

I.change these sentences into the passive voice

1.they should announce that news as soon as possible

=> That news should be announced as soon as possible.

2.phong has to return the scientific book to thelibrary

=> The scientific book has to be returned to the library by Phong.

3.people must repairthat old building

=> That old building must be repaired.

4.the government will rebuild the memorial monument

=> The memorial monument will be rebulit by the government.

5.the students may elect phong their leader

=> Phong may be elected their leader by the students.

6.the teacher won't accept papers written in pencils

=> Papers written in pencils won't be accepted by the teacher.

7.the athletes might visit some interesting places after sea-games

=> Some interesting places might be visited by the athletes after sea-games.

8.lan's parents have to clean up their house before tet holidays

=> Their house has to be cleaned up by Lan's parent before Tet holidays.

9.the principal might interview her

=> She might be interviewed by the principal.

10.they must keep fruit in the fridge for long

=> Fruit must be kept in the fridge for long.