4. If you are kind to me, I (be).............good to you. 8. we'll go to the beach tomorrrow if it (be).........nice....

Luyện tập tổng hợp

Bạn chưa đăng nhập. Vui lòng đăng nhập để hỏi bài

Linh Nguyen

5 tháng 3 2020 lúc 11:03

4. If you are kind to me, I (be).............good to you.

8. we'll go to the beach tomorrrow if it (be).........nice.

5.People get more diseases. the water is contaminated.

7. they get sick so often. if they . exercised more, they (be)..............heathier.

6. she has a headache after work every day. she works in a noisy office.

Question II Read the passage and answer the questions.
Visual pollution has a greater effect on people than you may think. I remember when I went to
a big city, I was really scared because so much graffiti on the buildings' wall. Then I looked up,
and I saw a lot of power lines over my head. Although they were not dangerous, I still felt
unsafe since I thought they might fall down. These things prevented me from enjoying the
beautiful sights of the city.
I also remember the time when I was a student at a university. Once I was so busy with my
assignments that I did not tidy my room for two weeks. Looking at the messy room caused me
so much stress that I did not want to study. Then I decided to clean the room and put my thing
in their proper places. I also bought a small plants and placed it in a corner of the room. These
simple actions increased my motivation and helped me to focus on my learning.
Questions.
1.How did the author feel when she saw the power lines?
………………………………………………………………………………………………….
2.Why did she have that feeling?
……………………………………………………………………………………………………
3. What was she busy with?
……………………………………………………………………………………………………
4. What happened when she looked the messy room?
……………………………………………………………………………………………………
5. What did she do for her room?
……………………………………………………………………………………………………

Lớp 8 Tiếng anh Luyện tập tổng hợp

Vũ Như Quỳnh

5 tháng 3 2020 lúc 11:14

4. If you are kind to me, I (be).......will be......good to you.

8. we'll go to the beach tomorrrow if it (be)...is......nice.

5.People get more diseases. the water is contaminated.

If the water is contaminated , people will get more diseases

7. they get sick so often. if they . exercised more, they (be)........will be ......heathier.

6. she has a headache after work every day. she works in a noisy office.

If she didn't work in a noisy office , she wouldn't have a headache after work every day.

Bạn đăng lại bài 2 đi ạ , khó nhìn :<

#Yumi

Đúng 0

Bình luận (0)

Khách vãng lai đã xóa

Các câu hỏi tương tự

Nguyễn Khắc Nam

30 tháng 3 2022 lúc 21:25

Đọc tiếp

Visual pollution has a greater effect on people than you think. I remember when I went to a foreign country, I was really scared because there was so much graffti on the building’s wall. Then I looked up, and I saw a lot of power lines over my head. Although they were not dangerous, I still felt insecure since I thought they might fall down. These things prevented me from enjoying the beautiful sights of the city. I also remember the time I studied in Melbourne. Once I was so busy with my assignments that I did not tidy my room for two weeks. Looking at the messy room caused me so much stress that I did not to study. Then I decided to clean the room and put my things in their proper places. I also bought a small plant and placed it in a corner. These simple actions increased my motivation and helped me focus on my learning.
a) Match the words with their correct meaning ( 1pt ).
1. graffiti a. chú ý ................
2. placed b.cảm hứng ................
3. motivation c. đã đặt, để ................
4. focus d. hình vẽ quảng cáo .................

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

Hồng Duyên

4 tháng 4 2020 lúc 11:32

II. Supply the correct form of the words in brackets to complete the sentences: ( 2pts) 1. Water pollution can be …….to fish and animals that live along the river. ( harm) 2. Untreated sewage can spread disease and ……..drinking water sources. ( contamination) 3. It’s evidence that this ocean is clean and … unpolluted. ( environment) 4. Death or disfiguration are common effects of ………… to radioactive waste. ( expose) III. Read the passage and answer the...

Đọc tiếp

II. Supply the correct form of the words in brackets to complete the sentences: ( 2pts)

1. Water pollution can be …….to fish and animals that live along the river. ( harm)

2. Untreated sewage can spread disease and ……..drinking water sources. ( contamination)

3. It’s evidence that this ocean is clean and … unpolluted. ( environment)

4. Death or disfiguration are common effects of ………… to radioactive waste. ( expose)

III. Read the passage and answer the questions: (2pts)

Visual pollution has a greater effect on people than you may think. I remember when I went to a big city, I was really scared because so much graffiti on the buildings' wall. Then I looked up, and I saw a lot of power lines over my head. Although they were not dangerous, I still felt unsafe since I thought they might fall down. These things prevented me from enjoying the beautiful sights of the city.

I also remember the time when I was a student at a university. Once I was so busy with my assignments that I did not tidy my room for two weeks. Looking at the messy room caused me so much stress that I did not want to study. Then I decided to clean the room and put my thing in their proper places. I also bought a small plant and placed it in a corner of the room. These simple actions increased my motivation and helped me to focus on my learning.

Questions.

1. How did the author feel when she saw the power lines?

………………………………………………………………………………………………….

2. Why did she have that feeling?

……………………………………………………………………………………………………

3. What was she busy with?

……………………………………………………………………………………………………

4. What happened when she looked the messy room?

……………………………………………………………………………………………………

IV. Rewrite the sentences, using the words in brackets. (2pts)

1. I don’t have much money now, but I want to buy a house in Phu My Hung.

→ If …………………………………………………………………………………………

2. Leaves are damaged. The tree cannot get enough food energy to stay healthy. (because)

→ ……………………………………………………………………………………………

3. The Walt Disney Studios has produced hundreds of cartoons for children.

→ Hundreds of cartoons for children ………………………………….……………………

4. People get more diseases.The water is contaminated.

→ If ………………………………………………………………………………………….

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

Thịnh Phan

6 tháng 4 2020 lúc 12:14

I/ Do as the directed speeches. 1. Students are more aware of protecting the environment. Teachers teach environmental issues at school.(.Combine each pair of sentences to make a conditional sentence type 2) →If teacher touch 2. Many rivers and lakes are poisoned.Factories produce waste and pour it into rivers and lakes. ( Rewrite the sentence, using ‘Because’) → Because ……………………………………………………………………………………… 3. He gets up early in the morning and he used to it.( Complete the second sentence so...

Đọc tiếp

I/ Do as the directed speeches.

1. Students are more aware of protecting the environment. Teachers teach environmental issues at school.(.Combine each pair of sentences to make a conditional sentence type 2)

→If teacher touch

2. Many rivers and lakes are poisoned.Factories produce waste and pour it into rivers and lakes.

( Rewrite the sentence, using ‘Because’)

→ Because ………………………………………………………………………………………

3. He gets up early in the morning and he used to it.( Complete the second sentence so that it has similar meaning to the first sentence.)

→He is used to ………………………………………………………………………………

4. Although he had a good salary, he was unhappy in his job.(Rewrite this sentence, using the cue)

→ In spite of……………………………………………………………..

5 Most ethnic peoples in Vietnam speak their own languagues ( Make question for the underlined part )

→……………… ...........................................................................................................................

I. Fill in each blank with one suitable from the box to complete the passage: (1,5ms)

Acid rain will not be an easy problem to solve .As more and more countries become …(1)… there will be more and more competition for petroleum for cars, home heating and industry . While ….(2)….petroleum contribute greatly to acid rain, it is less polluted than coal.

Unfortunately, petroleum is more ..(3)…than coal and no one knows exactly ..(4) … petroleum is left. Therefore, there will be a pressure to burn coal for energy. Coal is a lot dirtier energy source than petroleum. Since we already know how …(5).. acid rain is, it is important ..(6)… we increase our efforts to find a non-polluting source of energy as quickly as possible, so that we can avoid further environmental damage.

1. A. industry B. industrial C. industrialize D. industrialized

2. A. firing B. shooting C. burning D. cooking

3. A. expensive B. cheap C. clean D. dirty

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

5.A. destroy B. destroyed C. destruction D. destructive

6. A. that B. if C. weather D. which

II. Read the passage and answer the questions.(1.0 point)
Visual pollution has a greater effect on people than you may think. I remember when I went to a big city, I was really scared because so much graffiti on the buildings' wall. Then I looked up, and I saw a lot of power lines over my head. Although they were not dangerous, I still felt unsafe since I thought they might fall down. These things prevented me from enjoying the beautiful sights of the city. I also remember the time when I was a student at a university. Once I was so busy with my assignments that I did not tidy my room for two weeks. Looking at the messy room caused me so much stress that I did not want to study. Then I decided to clean the room and put my thing in their proper places. I also bought a small plants and placed it in a corner of the room. These simple actions increased my motivation and helped me to focus on my learning.

Questions.

1.How did the author feel when she saw the power lines?

………………………………………………………………………………………………….

2.Why did she have that feeling?

……………………………………………………………………………………………………

D.WRITING(2.5 marks)

I/ Do as the directed speeches.

1. The factory is located near our village. There is air pollution and noise pollution. (.Combine each pair of sentences to make a conditional sentence type 2)

→If …………………………………………………………………………………………………..

2.If you do not like this one, I’ll bring you another ( Use UNLESS instead of IF)

→Unless………………………………………………

3. If Lucia had been here now, she would find out the truth about her uncle’s accident. ( Find the mistake and correct it )

→ …..…………………..,…………………………………………………………………………

4. Scientists have invented new devices to help people live a longer life.

→New devices ………………………………………………………………………………….

5 . Noise pollution/ big cities/ lead/ hearing/ problems..( Write the complete sentences)

→...............................................................................................................................

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

ngọc anh ám ảnh

18 tháng 3 2020 lúc 15:31

USE OF ENGLISH Part 1. Choose the best option (A,B,C or D) to complete the following sentences. (1,5 pts) 1. There have been some changes in my village …………………. your visit last year. A. for B. since C. after D. before 2. Much of the town was rebuilt after the massive…………….. of the tornado. A . peace B. humour C. destruction D. safety 3. New Zealand rescue services carried out seve...

Đọc tiếp

USE OF ENGLISH

Part 1. Choose the best option (A,B,C or D) to complete the following sentences. (1,5 pts)

1. There have been some changes in my village …………………. your visit last year.

A. for B. since C. after D. before

2. Much of the town was rebuilt after the massive…………….. of the tornado.

A . peace B. humour C. destruction D. safety

3. New Zealand rescue services carried out several searches for ...........................

A. survivors B. rescuers C. helpers D. fighters

4. Don't drink that water. It's …………………………

A. clean B. contaminated C. dumped D. light

5. Choose the word that has different stress pattern from the others.

A. chemical B. political C. historical D. grammatical

6. Have you heard that John has been elected as the president of the school club?

A. Absolutely right! B.Really?

C. Sound great! D. Sure.

Part 2. Use the words in the bracket in the correct forms to complete the sentences. (0,5 pt)

7. Because of ………………….. achievements, we have decreased air pollution.. (science)

8. Thousands of buildings and houses were …………………. destroyed when the earthquake struck the city. (complete)

Part 3. Complete the second sentence so that it has a similar meaning to the first. (0,5 pt)

9.The rescuers took the homeless people to a safe place last night.

à The homeless ………………………………………..

10. Because I can't swim, I won't go scuba diving with Terry.

à If I ……………………………………………………………………………….

C.READING

Part 1. Read the following passage and fill in each blank with ONE suitable word. (1,25 pts)

Visual pollution

Visual pollution has a greater effect on people than
you may think. I remember when I went to a foreign city, I was really scared (1)……………there was so much graffiti on the buildings' walls. Then I looked up, and I saw a lot of
power lines over my (2)……….. Although they were not
dangerous, I still felt insecure since I thought they
might fall down. These things prevented me (3)……….
enjoying the beautiful sights of the city.

I also remember the time I studied in Melbourne. Once
I was (4) ………… busy with my assignments that I did not tidy my room for two weeks. Looking at the messy room
caused me so much stress that I did not want to study. What about you? Have you ever been affected by (5) ……….. pollution?

Part 2. Read the following passage and do the task below.

Air pollution is a cause of ill-health in human beings. In a lot of countries there are laws limiting the amount of smoke which factories can produce. Although there isn’t enough information on the effects of smoke in the atmosphere, doctors have proved that air pollution causes lung diseases. The gases from the exhausts of cars have also increased air pollution in most cities. The lead in petrol produces a poisonous gas which often collects in busy streets surrounded by high buildings. Children who live in areas where there is a lot of lead in the atmosphere cannot think as quickly as other children and are clumsy when they use their hands. There are other long-term effects of pollution. If the gases in the atmosphere continue to increase, the earth’s climate may become warmer. A lot of the ice near the poles may melt and may cause serious floods.
* Decide if the statements are true (T) or false (F). (1,25 pts)

6. Air pollution causes lung diseases. ……….
7. Lead is a harmful chemical element ………
8. If the gases in the atmosphere increase, the earth’s climate may become cooler. ………
9. We will have higher temperatures if we can't stop the pollution. ………
10. Ice melt from the poles can kill anything it passes. ……….

D. WRITING

Part 1. Rearrange the words to write the complete sentences. (0,5 pt)

1. the/ New York /is/ biggest /in /the city /USA, but/ the capital./ not ……………………………………………………………………………………………

2. sugar /Eating /much can /too /lead/ health/ to /problems.

…………………………………………………………………………………………….

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

Thư Đặng

3 tháng 3 2022 lúc 19:23

Read the following passage and choose the option (A, B, C or D) that best answers each of the following questions.Visual pollution has a greater effect on people than you may think. I remember when I went to a big city, I was really scared because so much graffiti on the buildings’ wall. Then I looked up, I saw a lot of power lines over my head. Although they were not dangerous, I still felt unsafe since I thought they might fall down. These things prevented me from enjoying the beautiful sigh...

Đọc tiếp

Read the following passage and choose the option (A, B, C or D) that best answers each of the following questions.

Visual pollution has a greater effect on people than you may think. I remember when I went to a big city, I was really scared because so much graffiti on the buildings’ wall. Then I looked up, I saw a lot of power lines over my head. Although they were not dangerous, I still felt unsafe since I thought they might fall down. These things prevented me from enjoying the beautiful sights of the city.

I also remember the time when I was a student at a university. Once I was so busy with my assignments that I did not tidy my room for two weeks. Looking at the messy room caused me so much stress that I did not want to study. Then I decided to clean the room and put my things in their proper places. I also bought a small plant and placed it in a corner of the room. These simple actions increased my motivation and helped me to focus on my lessons.

41. How did the author feel when she saw the power lines?

A. She was really scared.

B. She felt unsafe.

C. She felt it was very dangerous.

D. She felt it wasn’t dangerous.

42. Why did she have that feeling?

A. Because she thought she might fall down.

B. Because she thought they might fall down.

C. Because she thought she might be dangerous.

D. Because she thought it prevented her from enjoying the beautiful sights.

43. What was she busy with?

A. Enjoying the beautiful sights of the city.

B. Being a student at a university.

C. Her exercises and projects at the university.

D. Tidying her room for 2 weeks.

44. What happened when she looked at the messy room?

A. She didn’t want to tidy it.

B. She was very stress.

C. She started to clean the room.

D. She put her thing in the proper places.

45. What did she feel after the room was tidied?

A. She was motivated to buy a small plant.

B. She was motivated to tidy the room again.

C. She could concentrate on her studying.

D. She felt motivated to concentrate on tidying the room.

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

BTS Is My Life

20 tháng 12 2017 lúc 22:56

Fill up the spaces in each of the following sentences by inserting a verb + up, or a verb + up + preposition combination. 1. It is ...... factory owners to provide fire-fighting equipment in their factories. (No verb is required here.) 2. Unfortunately he was ...... by his parents to believe that money was the only thing that mattered. 3. The party didnt ...... till 3 a.m. and the guests left very noisily. 4. I ran after him and soon ......... him. Then we went on together. 5. Mother to child...

Đọc tiếp

Fill up the spaces in each of the following sentences by inserting a verb + up, or a verb + up + preposition combination.

1. It is ...... factory owners to provide fire-fighting equipment in their factories. (No verb is required here.) 2. Unfortunately he was ...... by his parents to believe that money was the only thing that mattered. 3. The party didn't ...... till 3 a.m. and the guests left very noisily.

4. I ran after him and soon ......... him. Then we went on together. 5. Mother to child: "Your clothes are covered with mud; what have you .........?" 6. If you buy the paint I'll ......this room for you. 7. He ......a list of conditions and we all agreed to them. 8. If you want a new passport you must ...... this form. 9. He......at 8 a.m. and went to bed at 11 p.m. 10. I tried three times to start the car and then ... it ... and went by bus. 11. If I ...... alcohol I'd be much healthier, but life wouldn't be so much fun. 12. I saw a policeman so I ......... him and asked him the way.

13. Most girls expect to get married when they....... 14. Cashiers carrying money to the bank are sometimes ...... by gunmen. 15. He couldn't ......... me as I ran much faster than he did

and soon left him behind. 16. I ...... a 20p piece that I saw lying on the ground. 17. He wasted two weeks and tried to ......... it by working madly the last day. 18. She said that she was going to educate her children herself, for if they went to school they'd only......bad habits. 19. Before you go on holiday you should ...... the house and ask the police to keep an eye on it. 20. The car......suddenly with screaming brakes. 21. English people have to.........English weather. 22. The thieves ...... (bound) the housekeeper and ransacked the house. 23. I've stupidly ...... your books and mine and now I don't know which is which. 24. He is a dangerous criminal. He ought to be....... 25. I want to ... him ... . Would you please ...... his telephone number? 26. I ...... at the meeting-place but the others didn't come. 27. He wanted something to do in his spare time so he ...... carpentry. 28. The police......a notice saying, "No Parking". 29. "Tell me at the end of the week how many hours you have worked and I'll ......with you then", his employer said. 30. It's probably true. No one would......such a stupid story. 31. She sat down in front of the mirror and began to ...... her face. 32. If only we had a dish-washer, we wouldn't need to ...... after every meal. 33 My father said it was all my fault but my mother ......... (defended) me and said that it wasn't. 34 He ...... his speech by calling for a vote of thanks for last year's president.

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

Hanh Nguyen

16 tháng 5 2018 lúc 7:55

EXERCISE;VI ; The following sentences are first, secoud or third conditional. Put the verbs in brackets into the appropriate form. 2.Why dont you explain everything to him. If you [not tell]...........him the truth. Im sure you [regret]..........it one day. 3.Mary was here not long ago. If you [come round]............earlier, you [see]...........her. 4.Apparently, the ferry company are planning to close the port in this town. If that [happen]...........the town [lose]..........a great deal of...

Đọc tiếp

EXERCISE;VI ; The following sentences are first, secoud or third conditional. Put the verbs in brackets into the appropriate form.

2.Why don't you explain everything to him. If you [not tell]...........him the truth. I'm sure you [regret]..........it one day.

3.Mary was here not long ago. If you [come round]............earlier, you [see]...........her.

4.Apparently, the ferry company are planning to close the port in this town. If that [happen]...........the town [lose]..........a great deal of money.

5.I [help].........you with it if I [have]...........more time but I'm afraid I haven't got any spare time at all at the moment.

6.The government is expecting to win the next election, but if it [lose].........the Prime Minister [resign]...........from politics.

7.I am so glad that you took me to your friend's party. If we [not go]..........there, I [never meet]..........Kate Winset.

8.It's ridiculous that trains are so expensive. If fares [be]..........cheaper, I'm sure more people [use]........the train and leave their cars at hoem.

9.If she [get].........that job she's applied for, she[be]..........delighted. And I think she's got a good chance of getting it.

10.Fortunately the explosion took place at night when the streets were empty. It [be].........a disater if it [happen].........in the middle of the day.

11.The talks between the two leaders keep breaking down. If they [break down]..........again, it is possible that there [be]...........a war between the two countries.

12.If Alison [know]...........anything about car mechanics ,I'm sure she [help]...........us fix the car, but I think she knows even less than we do.

13.They've been married for twenty years now but I don't think she [marry]...........him if she [know]..........what a selfish man he was.

14.Children spend too much time watching television and playing computer games. I'm sure they [be].........happier if they [spend]..........more time playing outside.

15.James has everything he wants but he's always moaning. I'm sure that if I [have].........so much money, I [not moan] .............all the time

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

đăng ĐÀO

5 tháng 9 2020 lúc 20:07

ex3. complete each sentence with might / must / should { not } 1. nancy said you didnt need to buy her anything for her birthday , but I really think you ____________ at least get her some flowers or nice bottle of wine 2. debbie said she was really busy this week ,but I think she ___________ show up at the party if she doesnt have to work overtime on friday 3. nina said she would come over right after work , so she _______________ be here by 6:00 4. oh my god , hes unconscious . dont m...

Đọc tiếp

ex3. complete each sentence with might / must / should { not }

1. nancy said you didn't need to buy her anything for her birthday , but I really think you ____________ at least get her some flowers or nice bottle of wine

2. debbie said she was really busy this week ,but I think she ___________ show up at the party if she doesn't have to work overtime on friday

3. nina said she would come over right after work , so she _______________ be here by 6:00

4. oh my god , he's unconscious . don't move him - he ________ have intenal injuries

5. Dan : where's the remote control ? I want to change the channel

Fiona: I don't know . It ____________ be under the couch

6. experts agree that to master a foregn language , you ___________ practicce the language regularly

7. new research suggests that exercise can reduce the chance of heat disesse as well as canser . that's why I told my father that he _________________ start walking once a day

8. we ________ invite sally and her husband to come to the picnic on saturday . we haven't seen them in weeks

ex4. complete each sentence with must/or have to { not }

1. you ______ be kidding . that can't be true

2. I ___________ be at the meeting by 10:00 . I will probably _____________ take a taxi if i want to be on time

3. you ___________ forget to pay the rent tomorrow . the landlord is very strict about paying on time

4. you _____________ be on rude . why don't you try saying " please " once in a while

5. if you are over 18 california , you ________________ take a drive training course to get a drive 's license . you can have a friend or a family member teach you instead

6. you _____________ be rich to be a success . some of the most successful people I know haven't got a penny to their name

7. Ed. my car broke own in dwath valley last week . I ______________ have it towed more than a hundred miles to the nearest mechanic

8. while hiking is alaska , you ___________ keep an eye out for bears . if you see one , you _________ approach it . they are beatiful animals ; they are wild and unpredictable in nature

Xem chi tiết

Lớp 8 Tiếng anh Luyện tập tổng hợp

no name

10 tháng 7 2017 lúc 15:33

VERB TENSE 1. do not phone after 11.00 . I ( be ) asleep 2.what do you think you ( do ) in 5 years time 3.it was only much later I ( find ) our that during all the time I ( write ) to my penfriend , my mother ( open ) and ( read ) the replies ! 4. come on , get a move on , or we ( miss ) the plane 5. I ( know ) I ( do ) well in my exams even before I receive the offical results. 6. You (swim) in the sea this time next week ? 7. I ( not understand ) what ( go on ) . Serveral people ( sho...

Đọc tiếp

VERB TENSE

1. do not phone after 11.00 . I ( be ) asleep

2.what do you think you ( do ) in 5 years' time

3.it was only much later I ( find ) our that during all the time I ( write ) to my penfriend , my mother ( open ) and ( read ) the replies !

4. come on , get a move on , or we ( miss ) the plane

5. I ( know ) I ( do ) well in my exams even before I receive the offical results.

6. You (swim) in the sea this time next week ?

7. I ( not understand ) what ( go on ) . Serveral people ( shout ) at me and one wave a newspaper in front of my face .

8. I ( stay ) here until he ( answer ) me

9. I ( not realise ) that I ( leave ) my umbrella on the bus until it (start ) rainning

10.you ( work ) the week after Chrismas ? I am thinking of visiting you

11.if you don't get there before 7 , they ( eat and drink ) everything

12. since I (pay ) for our lunch , I ( try ) to attact the waitress

13.as soon as I ( have )a good look at5 the designs , I ( send ) them back to you

14. you ( let ) me know the minute you ( hear ) any news

15. I ( not see ) him since last Monday

16. the old people think of all the things they ( do ) when thay were young

Xem chi tiết

Lớp 8 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)