II. Find and correct the mistake in each sentence below 1.We went fishing on this river when we were small children...

Hãy tham gia nhóm Học sinh Hoc24OLM

nguyễn KHÁNH

1 tháng 4 2020 lúc 17:17

Choose the best option to complete each sentence. Circle A, B, C or D. 1. He forgot to give a ___________ before he turned left and got a ticket. A. hand B. signal C. sign D. light 2. ___________ is it from your house to the nearest bus stop?” – “about 50 metres”. A. How much B. How long C. How far D. How often 3. Linh used to __________ jigsaw puzzles in his spare time. A. do B. does C. doing D. did 4. Public __________ in this city is quite good, and it’s not expensive. A. vehicle B. travel...

Đọc tiếp

Choose the best option to complete each sentence. Circle A, B, C or D.

1. He forgot to give a ___________ before he turned left and got a ticket. A. hand B. signal C. sign D. light 2. ___________ is it from your house to the nearest bus stop?” – “about 50 metres”. A. How much B. How long C. How far D. How often 3. Linh used to __________ jigsaw puzzles in his spare time. A. do B. does C. doing D. did 4. Public __________ in this city is quite good, and it’s not expensive. A. vehicle B. travel C. transport D. journey 5. ___________ does it take to go from ha noi to ho chi minh city by plane. A. How much B. How many C. How long D. How far

6. Minh used to ___________ his homework late in the evening. A. do B. does C. doing D. did

7. If people ___________ the rules, there are no more accidents. A. follow B. take care of C. obey D. remember 8. Hurry up or we can’t ___________ the last bus home. A. keep B. follow C. go D. catch 9. Lan used to go to school ___________. A. with bike B. by foot C. in car D. by bus 10. When there is a traffic jam, it ___________ me a very long time to go home. A. takes B. costs C. spends D. lasts

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Danh Vo

3 tháng 7 2018 lúc 8:39

1. My sister had her shoes A. put on B. clean C. bought If you dont work hard. It is very difficult for you to A fail 3. John is so lonely. ld like A. finds B. finding C. to find 4. We need a A. iron B. projector C.dryer 5. My children like football. They A. are play B. have play C play D are playing 6. No one is A, much B. more 7. Have you got anything A. cheapier B. cheaper 8. The washing machine over there is deep B. thick 9. John A. studies B. studys C. study D. to study 10. They like going...

Đọc tiếp

1. My sister had her shoes A. put on B. clean C. bought If you don't work hard. It is very difficult for you to A fail 3. John is so lonely. l'd like A. finds B. finding C. to find 4. We need a A. iron B. projector C.dryer 5. My children like football. They A. are play B. have play C play D are playing 6. No one is A, much B. more 7. Have you got anything A. cheapier B. cheaper 8. The washing machine over there is deep B. thick 9. John A. studies B. studys C. study D. to study 10. They like going to work foot. A. on B.by C.at 11. When did you.. hat photograph? D. polished the exam. C. take D. succeed B. pass him a nice girl D. find for our meeting today D. credit card football every Sunday Afternoon intelligent than Peter in this class. many D. less C. more cheap C. easy D. cheap D. most cheapest to use. Spanish well. D. for A. made B. do C. take D. make 12. She worksat school to get good marks in the exams. 13. Their wedding will be .. June 14. I often play footal! 15. The girls lovepart in the English speaking contests. A. hardly B. badly C. good D. harder A. in B. at C. into D. on .. Sunday afternoon. B. at D. during in on taking B. taking C. take D. took 16. The red ruler is..............than the blue one A. I B. longer C. longest D.as long 17. They didn't..............smoke when they were young. A. used B. use to D. used to C. use

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Tống Duyên

22 tháng 2 2020 lúc 15:42

I. Choose the best answer (A, B, C or D). 1. Cyclist and motorist have to wear a ______ when they ride a motorbike. A. cap B. mask C. helmet D. hard that 2. He forgot to give a ___________ before he turned left and got a ticket. A. hand B. signal C. sign D. light 3. All of us have to obey ____________ strictly. A. traffic B. traffic rules C....

Đọc tiếp

I. Choose the best answer (A, B, C or D).
1. Cyclist and motorist have to wear a ______ when they ride a motorbike.
A. cap B. mask C. helmet D. hard that
2. He forgot to give a ___________ before he turned left and got a ticket.
A. hand B. signal C. sign D. light
3. All of us have to obey ____________ strictly.
A. traffic B. traffic rules C. traffic jam D. regular
4. We should wait for the traffic lights ___________ before we cross the street.
A. turn yellow B. turn green C. to turn yellow D. to turn green
5. Drivers have to ___________ your seatbelt whenever they drive.
A. tie B. fasten C. put on D. put
6. We should __________ the street at the zebra crossing.
A. walk B. walk through C. walk on D. walk across
7. _________ is it from your house to the nearest bus stop?” – “about 50 metres”.
A. How much B. How long C. How far D. How often
8. Linh used to __________ jigsaw puzzles in his spare time.
A. do B. does C. doing D. did
9. Public __________ in this city is quite good, and it’s not expensive.
A. vehicle B. travel C. transport D. journey
10. I ____________ marbles when I was young, but now I didn’t.
A. play B. used to play C. have played D. didn’t use to play
11. There _________ a bus station in the city centre, but it has been moved to the suburbs.
A. were B. used to have C. use to have D. used to be
12. ___________ does it take to go from Ha Noi to Ho Chi Minh city by plane.
A. How much B. How many C. How long D. How far
13. Minh used to ___________ his homework late in the evening.
A. do B. does C. doing D. did
14. If people ___________ the rules, there are no more accidents.
A. follow B. take care of C. obey D. remember
15. You should ___________ right and left when you go across the road.
A. see B. look C. be D. take
16. Hurry up or we can’t ___________ the last bus home.
A. keep B. follow C. go D. catch
17. Lan used to go to school ___________.
A. with bike B. by foot C. in car D. by bus
18. Public ___________ in my town is good and cheap.
A. travel B. journey C. tour D. transport
19. When there is a traffic jam, it ___________ me a very long time to go home.
A. takes B. costs C. spends D. lasts
20. Yesterday rick and peter _______ round west lake. It took them an hour.
A. cycle B. cycles C. cycling D. cycled

. Fill each blank with a word from the box

accidents break vehicle across did rules it feels after ride

1. What ________________ you do last Sunday?
2. I stayed at home and looked ________________ my younger brother yesterday.
3. He lives in a small village in the mountains so he never ________________worried about traffic jams.
4. You should remember to walk ________________ the streets at the zebra crossings.
5. Does your bike ever ________________ down on the way to school?
6. We must always obey traffic ________________ for our safety.
7. How far is ________________ from your house to the bus stop?
8. There did not use to be many ________________ on the roads in my hometown.
9. He used to ________________ a tricycle when he was three years old.
10. Now there are more traffic ________________ than there used to be in this city.

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Jeon Jungkook Bangtan

18 tháng 1 2017 lúc 20:57

Choose the correct option for each gap in the sentences : 1. Cyclist and motorist have to wear a ...................... when they ride a motorbike A. cap B. mask C. helmet D. hard that 2. He forgot to give a ....................... before he turned left and got a ticket A. hand B. signal C. sigh D. light 3. All of us have to obey ........................... strictly A. traffic B. traffic rules C. traffic jam D. regular 4. We should wait for the traffic lights .......................... b...

Đọc tiếp

Choose the correct option for each gap in the sentences :

1. Cyclist and motorist have to wear a ...................... when they ride a motorbike

A. cap B. mask C. helmet D. hard that

2. He forgot to give a ....................... before he turned left and got a ticket

A. hand B. signal C. sigh D. light

3. All of us have to obey ........................... strictly

A. traffic B. traffic rules C. traffic jam D. regular

4. We should wait for the traffic lights .......................... before we cross the street

A. turn yellow B. to turn yellow C. turn green D. to turn green

5. Drivers have to ...................... your seabelt whenever they drive

A. tie B. fasten C. put on D. put

6. We should ............................ the street at the zebra crossing

A. walk B. walk through C. walk on D. walk cross

7. .......................... is it from your house to the nearest bus stop ? - " about 50 metres "

A. How much B. How long C. How far D. How often

8. Linh used to ........................... jig saw puzzles in his spare time

A. do B. does C. doing D. did

9. Poblic ....................... in this city is quite good, and it's not expensive

A. vehicle B. travel C. transport D. journey

10. I ...................... marbles when I was young, but now I didn't

A. play B. have played C. used to play D. didn't use to play

11. There ........................ a bus station in the city centre, but it has been moved to the suburbs

A. were B. used to have C. use to have D. used to be

12. .......................... does it take to go from Ha Noi to Ho Chi Minh City by plane ?

A. How much B. How many C. How long D. How far

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Thị Huyền Phan

24 tháng 3 2020 lúc 21:44

II. Choose the best answer (A, B, C or D). 1. Cyclist and motorist have to wear a ______ when they ride a motorbike. A. cap B. mask C. helmet D. hard that 2. He forgot to give a ___________ before he turned left and got a ticket. A. hand B. signal C. sign D. light 3. All of us have to obey ____________ strictly. A. traffic B. traffic rules C. traffic jam D. regular 4. We should wait for the traffic lights ___________ before we cross the street. A. turn yellow B. turn green C. to turn yel...

Đọc tiếp

II. Choose the best answer (A, B, C or D).

1. Cyclist and motorist have to wear a ______ when they ride a motorbike.

A. cap B. mask C. helmet D. hard that

2. He forgot to give a ___________ before he turned left and got a ticket.

A. hand B. signal C. sign D. light

3. All of us have to obey ____________ strictly.

A. traffic B. traffic rules C. traffic jam D. regular

4. We should wait for the traffic lights ___________ before we cross the street.

A. turn yellow B. turn green C. to turn yellow D. to turn green

5. Drivers have to ___________ your seatbelt whenever they drive.

A. tie B. fasten C. put on D. put

6. We should __________ the street at the zebra crossing.

A. walk B. walk through C. walk on D. walk across

7. _________ is it from your house to the nearest bus stop? about 50 metres.

A. How much B. How long C. How far D. How often

8. Linh used to __________ jigsaw puzzles in his spare time.

A. do B. does C. doing D. did

9. Public __________ in this city is quite good, and its not expensive.

A. vehicle B. travel C. transport D. journey

10. I ____________ marbles when i was young, but now i didnt.

A. play B. used to play C. have played D. didnt use to play

11. There _________ a bus station in the city centre, but it has been moved to the suburbs.

A. were B. used to have C. use to have D. used to be

12. ___________ does it take to go from ha noi to ho chi minh city by plane.

A. How much B. How many C. How long D. How far

13. Minh used to ___________ his homework late in the evening.

A. do B. does C. doing D. did

14. If people ___________ the rules, there are no more accidents.

A. follow B. take care of C. obey D. remember

15. You should ___________ right and left when you go across the road.

A. see B. look C. be D. take

16. Hurry up or we cant ___________ the last bus home.

A. keep B. follow C. go D. catch

17. Lan used to go to school ___________.

A. with bike B. by foot C. in car D. by bus

18. Public ___________ in my town is good and cheap.

A. travel B. journey C. tour D. transport

19. When there is a traffic jam, it ___________ me a very long time to go home.

A. takes B. costs C. spends D. lasts

20. Yesterday rick and peter _______ round west lake. It took them an hour.

A. cycle B. cycles C. cycling D. cycled

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Scarlett

9 tháng 5 2020 lúc 13:30

Exercise 1: Choose the best option to complete each of the following sentences. 1. All the food in the refrigerator _______ eaten, and it is empty now. A. are B. is C. have been D. has been 2. The Vietnamese people ____________ a heroic people. A. is B. are C. was D. were 3. That the committee members cannot agree with each other about solving that crisis ___________ caused a serious problem. A. is B. was C. has D. have 4. Who has been planning tee dance?” “Everyone in the class _________...

Đọc tiếp

Exercise 1: Choose the best option to complete each of the following sentences. 1. All the food in the refrigerator _______ eaten, and it is empty now. A. are B. is C. have been D. has been 2. The Vietnamese people ____________ a heroic people. A. is B. are C. was D. were 3. That the committee members cannot agree with each other about solving that crisis ___________ caused a serious problem. A. is B. was C. has D. have 4. "Who has been planning tee dance?” “Everyone in the class ____________” A. is B. has C. are D. have 5. The elderly in my country ___________by their children and grandchildren. A. is cared for B. care for C. cares for D. are cared for 6. The actor and the circus performer ___________ to the party tonight. A. is going B. are going c. goes D. go 7. The grey and blue blanket __________ yesterday. A. was washed B. was washing c. were washed D. were washing 8. Two hours’ study _________ enough for him to prepare a quiz. A. is B. are c. has D. have 9. I no less than he ________ blissful to see her. A. are B. is c. am D. be 10. It ___________ these questions that ___________ difficult. A. are - are B. is-are c. are - is D. is – is 11. Mumps __________ usually caught by children. A. are B. was c. is D. were 12. Seven twelfths of the men __________ another language. A. speak B. speaks C. is spoken D. are spoken 13. Two kilos _________ pretty small for a newborn baby. A. makes B. make c. are D. is 14. A basket of apples, oranges, and bananas _________ sent to my husband by his grandparents last Christmas. A. has been B. have been c. was D. were 15. The Dean and Lexicology lecturer _______ in the lecture theatre then. A. were B. was c. have been D. has been Giúp mk với!!!!! Thảo Anh

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Lưu Phương Anh

24 tháng 3 2020 lúc 18:57

I. Find the word which has different sound in the part underlined. 1. A. brainstorm B. sailing C. railway D. captain 2. A. plane B. safety C. traffic D. station 3. A. vehicle B. mention C. enter D. helicopter 4. A. happy B. house C. here D. hour 5. A. maps B. papers C. cats D. books 6. A. started B. decided C. worked D. waited 7. A. played B. closed C. filled D. needed 8. A. frightened B. amazed C. disappointed D. terrified 9. A. thread B. beam C. breath D. stead 10. A. naked B. booked C. worked...

Đọc tiếp

I. Find the word which has different sound in the part underlined. 1. A. brainstorm B. sailing C. railway D. captain 2. A. plane B. safety C. traffic D. station 3. A. vehicle B. mention C. enter D. helicopter 4. A. happy B. house C. here D. hour 5. A. maps B. papers C. cats D. books 6. A. started B. decided C. worked D. waited 7. A. played B. closed C. filled D. needed 8. A. frightened B. amazed C. disappointed D. terrified 9. A. thread B. beam C. breath D. stead 10. A. naked B. booked C. worked D. walked II.Choose the correct answer to complete each following sentence by circling A, B, C or D. 1. Linda used to ________ morning exercise when she got up early. A. did B. does C. doing D. do 2. My mum __________the bus to work every day, but I cycle. A. catches B. drives C. goes D. runs 3. You should look right and left when you go ________the road. A. down B. across C. up D. along 4. Bus is the main public ________in Viet Nam. A.travel B. tricycle C. transport D. vehicle 5. The play was so boring. ________, An saw it from beginning to end. A. Therefore B. Despite C. However D. Although 6. She’s sure that they will find the film_________. A. entertaining B. entertain C. entertainment D. entertained 7. – “ Do you like seeing a film?” – “_________________” A. No, I don’t like it at all B. Sure. What film shall we see? C. Who is in it? D. I’m sorry, I can’t. 8. ____________ being frightened by the images, Lan still liked the film so much. A. In spite B. Despite C. Although D. Nevertheless 9. ____________ is La Tomatina celebrated? – Every August. A. Where B. Why C. When D. Which 10. My father liked the ____________ of that singer. A. perform B. performer C. performance D. performing 11. Does your bike ever ________ down on the way to school. A. break B. take C. do D. turn 12. I __________go on foot when I was in primary school. A. used to B. break C. can D. may 13. Give a________ before you turn left or right. A. signal B. turn C. sound D. sign 14.In the party last night, she looked in a red dress. A. love B. lovely C. loving D. lovelily 15. Is Minh with the final semester‘s result? B. Satisfy B. satisfied C. satisfying D. be satisfying 16. The ending of the film is All audiences are very sad. A.disappointed B. satisfying C. disappointing D. satisfied 17. This is a film and it makes me cry a lot. A.funny B. moving C. comedy D. excited 18. he is a CEO and earns a lot of money, he is very mean. A. Because B. Although C. Despite D. Because of 19.This is a(n) on real life during wars in Vietnam in 1945. A. horror film B. sci-fi C. comedy D. documentary 20.He the Oscar Prize as the best actress this year. A. wins B. acts C. performs D. directs 21. She is hard working , she isn‘t lucky in examinations. A.Therefore B. But C. However D. So 22. She decided to quit this job the low salary. A.because of B. despite C. because D. although 23. Minh used to jigsaw puzzles in his spare time. A. do B. does C. doing D. did 24. Public in this city is quite good, and it‘s not expensive. A. vehicle B. travel C. transport D. journey 25. It‘s about 2 kilometers ………………my house school. A. between/and B. from/to C. between/to D. from/ and III. Put the correct form of the verb in brackets. 1.Nam often ( play) ________________________ soccer in the afternoon. 2.My father used to (go) _____________________swimming when he was a child. 3.What about ( go) ____________________ to the zoo on Sunday evening ? 4. Tien Dung goalkeeper ( live ) _____________________ Thanh Hoa city since 1997. 5.I used to ( go) ____________________ to the zoo on Sundays when I was a child. 6.Xuan Truong footballer ( play) ________________________ soccer beautifully last Saturday. 7.Nam used to (go) _____________________fishing when he was a child. 8.They (learn ) _____________________ English for five years. 9.How about ( go) ____________________ to the zoo on Sunday evening ? 10.Quang Hai footballer ( play) ________________________ soccer beautifully last Saturday. 11.I ( meet ) ______________________ her at the movie theater last night. 12.He ( go ) ___ to the English club every Sunday. But last Sunday he ( not go ) ________ there, he went to the City’s museum. 13.Two years ago, she ( teach ) ______________________ at a village school. 14.What __________you (do) ____________ yesterday morning? 15.We ( travel ) ______________________ to Hue next month. 16.My mother ( not like ) ______________________ riding a motorbike. 17.When my father was young, he (drink ) _____________________ a lot of beer. 18.Nam ( study ) ______________________ homework in the living room now. 19.Be careful ! The car ( come ) ______________________ . 20.My mother ( go ) ______________________ to the supermarket yesterday evening. IV. Find and correct a mistake in each sentence 1. Use roads careful so we may be able to use them for a long time. 2. I saw some cars stop by the police. 3. The car was too expensive for him buying. 4. My father is a careful driver and he doesn’t drive too fast or dangerous. 5. On the way we passed, there were many interested sights. 6. The old house in the end of the road has been sold. 7. Despite of taking a taxi, he arrived late. 8. The gate are closed so that the children can’t run into the road. 9. The train had just left when I arrive at the station. V: Make one sentence from two. Use the word(s) in brackets in your sentences. 1. I couldn't sleep. I was very tired. Despite I couldn't sleep despite being vey tired. 2. They have very little money. They are happy. In spite of ....................................................................................................................................... 3. My foot was injured. I managed to walk to the nearest village. Although ........................................................................................................................................ 4. I enjoyed the film. The story was silly. In spite of ....................................................................................................................................... 5. We live in the same street. We hardly ever see each other. Despite .......................................................................................................................................... 6. I got very wet in the rain. I was only out for five minutes. Even though .................................................................................................................................. VI. Rewrite sentences with In spite of / Despite /because / because of 1. Although Tom was a poor student, he studied very well. In spite of _______________________________________________________________ 2. Mary could not go to school because she was sick. Because of _______________________________________________________________ 3. Although the weather was bad, she went to school on time. Despite _______________________________________________________________ 4. Because there was a big storm, I stayed at home. Because of _______________________________________________________________ 5. In spite of his good salary, Tom gave up his job. Although_______________________________________________________________ 6. He is so young. His acting is excellent. Although___________________________________________________________________ 7. The film poster is fascinating. I don't want to see this film. In spite of___________________________________________________________________ 8. Although our plan is careful, we made some mistakes. Despite______________________________________________________________ VII. Read the following passage and choose the best answer Making a film takes a long time and is very hard work. Writing the story for the film may take many weeks. Filming the story, or shooting the film, often takes at least six months. Actors and cameramen work from very early in the morning until late at night. Each scene has to be acted and re-acted, filmed and re-filmed, until it is just fine. Sometimes the same scene has to be acted many times. The film studio is like a large factory, and the indoor stages are very big indeed. Scenery of all kinds is made in the studio. Churches, houses, and forests are all built of wood and cardboard. Several hundred people work together to make one film. Some of these people are the actors and actresses. The director of the film, however, is the most important person in a film studio. He decides how the scenes should be filmed and how the actors should act. Most people go to see a film because they know the film stars are in it. Sometimes the film may be very poor. It is best to choose a film made by a good director. Some famous directors make their films very real; people feel that they themselves are among the people in the films. 1. Shooting a film often takes…………………. A. less than six months B. at least six months C. many weeks D. from early in the morning until late night 2. Some scenes have to be filmed many times because……………. A. it takes a long time to make a film B. it is often difficult to make them just right C. many people work together D. the film is poor 3. Which of the following is compared to a factory? A. The film studio B. The indoor stage C. The scenery D. A poor film 4. The director of a film………………… A. is always an actor B. makes the scenery C. is a film star D. says how each scene should be filmed 5. We should choose a film which…………………. A. has actors we know B. seems very real C. takes a long time to make D. is made by a good director 6. Which of the following statements is NOT true? A. Writing the story for the film is a part of making a film. B. The indoor stages in the film studio are very big. C. All of the people in film making are actors and actresses. D. Shooting the film often takes many months. 7. The best title for the passage is "________ ". A. Writing the Story B. Actors and Actresses C. A Director D. Making a Film

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Hồ Việt Hà

21 tháng 1 2017 lúc 18:07

1. I bought this dress at the .............on Hang Bai street. A. clothes’store B. store of closes C. clothes store D. closing store 2. Isn’t it easy to learn English well ? A. No, it is B. No, it does not C. Yes, it is D. Yes. it does 3. There are two churches in the town and ...............of them are extremely old. A. each B. all...

Đọc tiếp

1. I bought this dress at the .............on Hang Bai street.
A. clothes’store B. store of closes C. clothes store D. closing store
2. Isn’t it easy to learn English well ?
A. No, it is B. No, it does not C. Yes, it is D. Yes. it does
3. There are two churches in the town and ...............of them are extremely old.
A. each B. all C. both D. most
4. When they.....children, they often played with together. A. was B. will C. are D. were
5. Mr.Nam ................to work yesterday.
A. wasn’t drive B. not drive C. didn’t drove D. didn’t drive
6. The news on TV last night...........................very good.
A. was B. has C. were D. be
7. Lan did not know the world. Hoa didn’t, ..............
A. so B. neither C. either D. too
8. My sister will be 16 ….. Sunday …………..
A. on - May 25th B. on - May 25 C. in - 25th May D. in - May 25
9. If he eats all that food, he eats .......................
A. quite much B. too many C. quite many D. too much
10. Mr.Robinson speaks Vietnamese very......................
A. skillfully B. good C. fluently D. best

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Đinh Thị Vân Linh

26 tháng 2 2020 lúc 10:27

1......is it from your house to your school? A how many B how far C how much D how long 2......do you live with ? A where B who C when D why 3 our classes always start........7 o clock in the morning A at B in C on D to 4 his father has..........days off than his mother A fewer B few C little D less 5 how many people...........

Đọc tiếp

1......is it from your house to your school?

A how many B how far C how much D how long

2......do you live with ?

A where B who C when D why

3 our classes always start........7 o clock in the morning

A at B in C on D to

4 his father has..........days off than his mother

A fewer B few C little D less

5 how many people............in your family?

A have got B there are C are there D have

6 they live...............34 Tran Hung Dao street

A on B in C at D of

7.........class is she in?she is in class 7A

A what Bwhich C when D how

8 how long does............take to get to your house from school?

A he B she C it D they

Xem chi tiết

Lớp 7 Tiếng anh Luyện tập tổng hợp

Luyện tập tổng hợp

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)

Luyện tập tổng hợp

Câu hỏi

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)