Read the passage, and then answer the questions. (2.5 points)

Mary loves Viet Nam and she wants to travel by train to see as much of the country as possible . She also wants to visit an oceanic institute in Viet Nam .

John is interested in the history of Viet Nam . He wants to visit the place where President Ho Chi Minh left Viet Nam in 1911 .

Joanne likes swimming and sunbathing . She has been to Viet Nam twice and she has visited Nha Trang already .

Donna is a florist . She has a flower shop in Los Angeles . She is thinking of importing flowers from Viet Nam .

Exercsie 1: Find the word which has different stress pattern from the others. 1. A. artistic B. historic C. dramatic D. scientific 2. A. medical B. national C. chemical D. historical 3. A. athletic B. dramatic C. scenic D. heroic 4. A. natural B. hospital C. politic D. electric 5. A. geography B. electronic C. scientific D. preparation 6. A. climatology B. bibliography C. communication D. radiography 7. A. examinee B. engineer C. referee D. Vietnamese 8. A. classical B. poisonous C. logical D. pollution 9. A. temporary B. geology C. emergency D. logography 10. A. coffee B. degree C. trainee D. agree 11. A. scientific B. sociology C. geography D. medication 12. A. collapse B. destroy C. provide D. scatter Exercsie 2: Find the word which has different sound in the part underlined. 13. A. critical B. logical C. medical D. biological 14. A. chemical B. brochure C. mechanical D. orchid 15. A. initial B. tactical C. topical D. critical 16. A. untreated B. measure C. pleasure D. bread 17. A. physical B. visual C. music D. because 18. A. thermal B. thankful C. there D. thorough 19. A. community B. common C. command D. complete 20.A. famine B. determine C. miner D. examine 21. A. played B. washed C. passed D. watched 22. A. bury B. eruption C. mudslide D. untreated 23. A. scatter B. shake C. collapse D. evacuate 24. A. trapped B. damaged C. destroyed D. moved 25. A. violent B. minor C. disaster D. climate B. VOCABULARY AND GRAMMAR Exercsie 3: Choose the best option (A, B, C or D) to each space. 1. If the factory continues dumping poison into the lake, all the fish and other aquatic animals _________. A. die B. to die C. dead D. will die 2. Water pollution is the ____________ in the lake which has made the fish die. A. contaminating B. contaminate C. contaminated D. contamination 3. The road in front of my office is always __________ when it rains heavily. A. to flood B. flooding C. flood D. flooded 4. In some English speaking countries, turkey and pudding are ___________ food at Christmas. A. national B. historical C. traditional D. possible 5. The USA has a population of 304 million, and it’s the third_________ country in the world. A. smallest B. largest C. narrowest D. highest 6. The roof of the building _____________ in a storm a few days ago. A. damaged B. was damaged C. has damaged D. has been damaged 7. As soon as the floodwater ___________ down, people ____________ their houses. A. went - cleaned B. had gone – cleaned C. went - had cleaned D. had gone – had cleaned 8. If I were you, I ___________ do something to prevent him from littering. A. would B. did C. will D. do 9. Earth ___________ by the gravity of the Sun and orbits around it. A. holds B. is held C. is holding D. held 10. By the time we ___________ to the cinema, the film had started. A. gets B. had got C. has got D. got 11. When the policeman came there, the robber ___________. A. had left B. has left C. left D. was left 12. All people who were without homes in the flood were provided with ___________ accommodation. A. short B. temporary C. present D. instant 13. When thermal pollution happens, the water temperature in streams, rivers, lakes and oceans ___________. A. changes B. keeps C. remains D. stays 14. Australia is home to ___________ animals like kangaroos and koalas. A. only B. rare C. unique D. precious 15. If you were the president, what ___________ you do to help the environment? A. will B. did C. would D. do 16. Up to now, flash floods and mudslides __________ by the heavy rain. A. have caused B. caused C. have been caused D. was caused 17. When the policeman came to the scene, the driver of the car ___________. A. have left B. had left C. leaves D. was left 18. There is evidence that air pollution can cause birth ___________. A. reflect B. detects C. defects D. treatment 19. Linh: Mai has won the first prize. – Ha: ___________! A. That's awesome B. Oh dear C. How terrible D. That's shocking 20. Noise pollution can lead to ___________ loss. A. looking B. hearing C. listening D. reading 21. Have you come ___________ solutions to this problem? A. up to B. to with C. up with D. on to 22. Household and farming chemicals ___________ air pollution. A. lead in B. result to C. cause D. make 23. ________is an extremely large wave in the sea caused, for example, by an earthquake. A. tsunami B. typhoon C. tornado D. storm 24. ___________ has a unique culture with traditions such as bagpipes, kilts and highland dancing. A. England B. Wales C. Northern Ireland D. Scotland 25.These plants float on the ___________ of the contaminated water. A. surname B. surface C. head D. face Exercsie 4: Mark the letter A, B, c, or D to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. 26. Ships spill oil in oceans and rivers. This leads to the death of many aquatic animals and plants. A. result in B. result from C. result of D. result for 27. A lot of fish has died recently because of the polluted water in this lake. A. fresh B. clean C. contaminated D. chemical 28. Many species of wildlife are becoming extinct since the rainforests are being destroyed. A. die in B. die away C. die by D. die out 29. Coming to New Zealand, you will be surprised by its many breath-taking views. A. spectacular B. awful C. surprising D. unbelievable 30. Man has spent years and years trying to predict weather patterns but it is still an inexact science. A. remember B. forecast C. tell D. make Exercsie 5: Choose the word or phrase that is OPPOSITE in meaning to the underlined part in each of the following sentences. 31. People will be evacuated to a safe place to live in the short run. A. leave B. move out D. change D. come in 32. The earth’s weather is mysterious and we don’t know what will happen to us. A. clear B. vague C. dark D. unclear 33. Nowadays, viewers can watch many international programs on TV. A. worldwide B. local C. global D. entertaining 34. Radioactive pollution is increasing because of the increased use of radioactivity. A. rocket B. grow C. decrease D. remain 35. She was unable to find a permanent job. A. part time B. temporary C. well-paid D. full-time Exercise 6: Choose the underline part that need correcting in each sentence below. 36. You would miss the bus if you wouldn't hurry up. A B C D 37. When I reached the peak of the mountain, I could see how beauty everything was. A B C D 38. I came back home after my sister had finish her dinner. A B C D 39. Frank said that he has met Sir. Alex Ferguson before. A B C D 40. Before Christine goes to bed, she had drunk a glass of wine. A B C D 41. If I were you, I will go jogging every morning. A B C D 42. The water is contaminated as a result in pouring lots of chemicals into the river. A B C D 43. She would like to know how pronounce these Spanish words. A B C D 44. She told her husband she hadn't wore such a kind of dress before. A B C D 45. The flight may to be cancelled if the fog gets thick. A B C D Exercise 7: Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best completes each of the following exchanges 46. Did you take that photo, Xuan? A. Yes, I took it yesterday B. Yes, my brother took it yesterday C. Exactly! Garbage on riverside. D. I think so too. 47. - “A12 year old boy was found alive after being buried in an avalanche for 40 minutes.” “___________” A. That’s awesome! B. That’s shocking! C. That’s awful! D. Well done! 48. 10. “A hurricane is heading toward our home town.” - “_________” A. That’s a relied. B. How interesting! C. Glad to hear. D. Oh my God! 49. "May I come in?" A. No, you may not. B. Yes, why not? C. Yes, please do. D. No, I don't accept that. 50. - "Let's meet outside the art gallery." A. Yes, let us do it. B. When can I go there? C. I'd like to go to the concert. D. Yes. Is 8.30 all right? C. READING Exercsie 8: Choose the correct answer for each gap to complete the following passage. Rivers are ____(1) ____ of the world’s most important natural resources. Many cities are on large rivers, and____ (2)____ every country has at least one river that ___(3)___ an important part in the lives of its people. Besides transportation, rivers ___(4)___ food, water for crops, water to drink, and opportunities for recreation for people who live along their ____(5)____. And in order to get water for crops, engineers sometimes build a dam across a river and let the water become a lake ____(6)____ the dam. Then people can use their water not only to ___(7)___ fields but also to make electricity for homes and industries. ____(8)___, the water often becomes polluted when cities on river banks grow ____(9)____ size and the number of industries increases. We are learning that it is necessary to ____(10)_____ rivers clean if we want to enjoy the benefits of the natural resources. 1. A. one B. ones C. among D. those 2. A. most B. mostly C. almost D. about 3. A. takes B. makes C. occupies D. plays 4. A. supply B. provide C. distribute D. bring 5. A. banks B. shores C. sides D. beaches 6. A. behind B. on C. below D. under 7. A. take B. irrigate C. drain D. give 8. A. Moreover B. Therefore C. Thus D. However 9. A. of B. about C. in D. for 10. A. keep B. get C. hold D. maintain Exercsie 9: Choose the correct answer for each gap to complete the following passage. The City of London, the capital of United Kingdom is a year-round tourist destination. London is the (11) _____________ city in Europe and located astride the famous (12) _____________of Thames. This is the home for (13) _____________of the international organizations and the city is headed by the Lord Mayor of London. The city of London has its own police (14)_______ ,called City of London police. London is considered as both business (15) _____________ tourist destination and (16) _____________by millions of people annually. The Heathrow Airport, London considered as the busiest airport (17) _____________the world. City of London provides many attractions for visitors. You can visit London: museums, see Royal palaces and activities, relax on London parks and (18) _____________more places for bed and dine. London is considered an expensive city in the world and (19) _____________ though its home for many foreign migrants, still keeping (20) _____________ traditional heritage and surrounding. 11. A. largest B. larger C. large D. largely 12. A. mountain B. river C. bridge D. road 13. A. little B. a little C. more D. most 14. A. team B. group C. force D. strength 15. A. or B. with C. and D. of 16. A. visit B. visited C. visiting D. to visit 17. A. in B. at C. on D. till 18. A. lot B. a lot C. much D. many 19. A. eve B. event C. ever D.even 20. A. it B. its C. they D. their Exercsie 10: Choose the correct answer for each gap to complete the following passage. The Gherkin is one of several modern buildings that have been built over the years in a historic area of London. The (21) skyscraper was built in 2004, and its unique, and energy-efficient design has won the Gherkin many (22). The cigar-shaped structure has a steel frame (23) circular floor planes and a glass facade with diamond-shaped panels. The building's energy-saving (24) allows the air to follow up through spiraling wells. The top of the tower, (25) visitors find an open hall covered by a glass conical dome, is even more spectacular. From here you have great views over the city. 21. A. 41 stories B. 41-stories C. 41-story D. story-41 22. A. awards B. rewards C. stories D. achievements 23. A. of B. with C. at D. in 24. A. machine B. machines C. system D. systems 25. A. where B. at where C. from where D. there Exercise 11. Read the passage and choose the best answer A, B, C or D to each question below. Volcanoes can be fun to learn about. It can be neat to watch them erupt. But if you live near a volcano, you know that they are dangerous! An eruption can like an explosion. Rock and lava can throw up into the air. Streams of red hot lava quickly run down from the peak of the volcano. The air is filled with deadly gases. These things can put many lives in danger. Scientists have learned that there are many things that they can study to help them tell when an eruption might happen. They can study the movements of the ground. When a volcano is about to erupt, the ground will often move just like it does during an earthquake. Scientists can also measure the gases that come out of a volcano. Most volcanoes emit gases all of the time. More gases are let out as the volcano gets closer to erupting. They can also study the way the land and water around the volcano. Scientists can read these signs and warn people of danger. They may not realize it, but their work helps to keep people safe! 26. In the passage, a volcanic eruption is compared as . A. an explosion B. an exploration C. a bomb D. a danger 27. can come out from a volcanic eruption. A. Rock B. Lava C. Gases D All above. 28. can study many things to predict when an eruption might happen. A. Economists B. Scientists C. People. D. Biologists 29. There are ways for studying to estimate the time an eruption might happen. A. 1 B. 2 C. 3 D. 4 30. When an eruption is going to happen, . A. the ground moves as it does during an earthquake. B. the gases don't come out of it more than usual. C. only the water around it changes. D. the ground moves slowly and weakly. Exercise 12. Read the passage and choose the best answer A, B, C or D to each question below. A hurricane is a huge storm that forms over warm ocean water. Bands of thunderstorms form and swirl around and around because the rotation of the earth. As more and more thunderstorms form, the hurricane gets bigger and bigger. A hurricane is one of the world's worst storms because it can last for days or weeks. Hurricanes can also be very large. They may cover hundreds of miles and affect large areas of land. For a storm to be classified as a hurricane, wind speeds within the storm have to reach at least 74 per hour. But hurricane winds can reach speeds of over 155 miles per hour! A large amount of destruction may occur with winds that strong. Roofs may be torn off homes. Buildings may be flattened. Trees topple over. Hurricanes are deadly, but not just because of their winds. They can also produce very heavy rains and huge waves that slam into the coastline. Hurricanes are very common along the east coast of the United States. Here, wind, waves, and rain do the most damage. Luckily, meteorologists (people who study weather) can forecast hurricanes days in advance by using radar technology. Radar is a little bit like a moving picture. It shows how big storms are and which way they are moving. Radar images people time to prepare for a coming storm. If the storm is very strong, home and business owners will put up plywood to protect their glass windows and doors. People who live along the coast will evacuate. They'll go to a hurricane shelter or stay with friends and relatives who live in safer places farther inland. Many lives are saved every year by people who take the necessary precautions. 31. What is a hurricane? A. a tidal wave B. a huge storm C. a thunderstorm D. a tsunami 32. What makes a hurricane? A. thunderstorms B. strong winds C. seawater D. the earth rotation 33. What of the following is not correct? A. A hurricane is very dangerous because it lasts for days and weeks. B. The hurricane wind speeds per hour can be nearly twice as fast as the wind speeds. C. A hurricane can reach speeds of at least 74 km per hour. D. Hurricanes often appear along the east coast of the United States. 34. Who is meteorologist? A. People study weather. B. People do businesses in the meteorological field. C. People live along the coast. D. People are evacuated from the regions affected by hurricanes. 35. What is radar used for? A. making moving pictures B. showing the size of hurricanes and their movements C. giving people time to prepare for a coming storm D. All above Exercise 13. Read the passage and choose the best answer A, B, C or D to each question below. Pollution can be seen not only throughout the world, but also in our own homes. It comes from household chemicals; the amount of water people use and the waste people produce and throw away. What can be done to stop this pollution? Surprisingly, a person can help save the environment by doing simple things. First, we need to recycle, which allows products to be used over and over again. Recycling can also reduce the number of trees cut down to produce paper products. It takes very little effort. It is not hard to place plastic and glass bottles, aluminum cans and paper in a bin. Anyone can do it. Second, we need to watch the amount of water used in the home. It can be conserved by taking short showers instead of baths, repairing leaky faucets, using the dishwasher or washing machine only when fully loaded, or simply turning the faucet off while brushing your teeth. Third, we need to reduce waste. We need to recycle whenever possible, but should also try to use this waste effectively. For example, grass clippings and food scraps can be made into compost for plants. The average person produces 4.3 pounds of waste every day, but we can reduce that amount by recycling and reusing. If we do our part in our own homes, we can help keep the planet from becoming more polluted. 36. Pollution can be caused from the following sources except . A. house chemicals B. water from households C. wastes D. water in rivers 37. Recycling can help us . A. never cut down trees B. use products again and again. C. place garbage bins easily D. produce more paper products 38. In order to save water, we can do all of the following things except . A. take short showers instead of baths B. repair leaky faucets C. fully use the washing machine D. turn the faucet off while brushing your teeth 39. Recycling helps to reduce waste because . A. plants need to develop B. a person can do it in his home C. waste can be recycled and reused D. an average man produces compost for plants 40. The word "It" in paragraph 2 refers to . A. recycling B. the number C. cutting down D. effort Exercise 14. NATIVE AMERICANS Native Americans have been living in what is now the United States of America since long before any Europeans came. They are not just a single group of people - there are many different tribes of Native Americans. Different Native American groups have different languages, religious believes, and ways of living, or folkways. The Hopi are Native Americans who come from what is now the American Southwest. When the Spanish came to America in the 16th century and found the Hopi people, they nicknamed them “pueblo people” because Hopi people didn’t move around much - they lived together in what amounted to towns. Pueblo is a Spanish word that means “town.” The Hopi have always been a very peaceful people. Their name comes from the term Hopituh Shi-numu, which means, in the Hopi language, “The Peaceful People” or “Peaceful Little Ones.” The Navajo come from the same general area as the Hopi. But instead of staying in one place, they moved around. They didn’t live in permanent towns like the Hopi. They were a “semi-nomadic” people. While the Hopi were historically known for farming, the Navajo were known for hunting and gathering. After they met the Spanish, the Navajo became known for herding sheep. The Hopi, not so much. Today, there may not be as many thriving Native American tribes as there used to be, but there are more than a few. All in all, there are about 1,000 different groups of Native American people in the United States, and each group is unique. 41. How long have Native Americans been living in America? A. A few decades B. Since after the arrival of Europeans C. About the same time as the Europeans D. Long before any Europeans came 42. Why does the author compare different Native American tribes? A. to show that they all come from the same region of North America B. to show how different Native American tribes can be C. to show the different ways Native American tribes found food D. to show the traveling patterns of different Native American tribes 43. Which of the following is NOT true about the Hopi? A. They live in the American Southwest. B. They were farmers. C. They travelled from place to place in search of land. D. They enjoyed a peaceful way of life. 44. What does the word “permanent” most nearly mean? A. changing B. cultural C. long-lasting D. unstable 45. After the Spanish arrived in the 1600s, the Navajo A. didn’t live in permanent towns. B. lived by hunting and gathering. C. moved from their homeland. D. began to farm sheep. Exercise 15 The kiwi lives only in New Zealand. It is a very strange bird because it cannot fly. The kiwi is the same size as a chicken. It has no wings or tail. It does not have any feathers like other birds. A kiwi likes a lot of trees around it. It sleeps during the day because the sunlight hurts its eyes. It can smell things with its nose. It is the only bird in the world that can smell things. The kiwi's eggs are very big. There are only a few kiwis in New Zealand now. New Zealanders want their kiwis to live. There is a picture of a kiwi on New Zealand money. People from New Zealand are sometimes called ‘Kiwis’. 46. Where does the Kiwi live? A. in England B. in the USA C. in New Zealand D. in Philippines 47. Can kiwis fly? A. No they can’t B. Yes, they can 48. Why does kiwi sleep during the day? A. It love sleeping B. It is hungry C. It hates daylight D. The sunlight hurts its eyes 49. How are the kiwi’s eggs? A. small B. fragile C. thick D. big 50. What are people from New Zealand sometimes called? A. Zombies B. monies C. cookies D. kiwis D. WRITING Exercsie 16: Rewrite the following sentences so that the second sentence means the same as the first one. 1. The strong winds last night scattered debris across the countryside. → __________________________________________________________________ 2. The rescue workers evacuated the villagers in the raged flood to the safe place last night. → __________________________________________________________________ 3. The storm destroyed many houses in this village last week. → __________________________________________________________________ 4. Did they give food to homeless people last year? → __________________________________________________________________ 5. In the future, people will predict natural disasters accurately with the help of technology. → __________________________________________________________________ 6. The students will provide aids for the homeless people tomorrow. → __________________________________________________________________ 7. Scientists have invented new devices to help people live a longer life. → __________________________________________________________________ 8. They don’t have a map, so they get lost. → __________________________________________________________________ 9. I don’t have enough time, so I can’t go on holiday this summer. → __________________________________________________________________ 10. I can’t tell you because I don’t know the answer. → __________________________________________________________________ 11. They will do the test well. They will review them all hard. → __________________________________________________________________ 12. The people will protect the environment now. The environment will be nice → __________________________________________________________________ 13. Peter didn’t go to school yesterday because he was sick. (because of) → __________________________________________________________________ 14. Mary went to bed early because she felt tired. (because of) → __________________________________________________________________ 15. We are unable to see the stars in the sky. Light pollution occurs. (makes) → __________________________________________________________________ Exercise 17: Use the given words to write the complete conditional sentences type 2. 16. If/I/ be/ his father/I/ ask/ him/ learn English/ better. → __________________________________________________________________ 17. If/I/ come home/ early/I/ prepare/ dinner. → __________________________________________________________________ 18. They/ live/ that house/ ten years. → __________________________________________________________________ 19. I/ already / quit/ job/ when/ she/ join/ company. → __________________________________________________________________ 20. He/ not be able to eat/ dinner/ before/ his wife/ come home. → __________________________________________________________________ 21. My sister/ finish lunch/ by the time/ I/ walk/ kitchen. → __________________________________________________________________ 22. She/ not like/ disturb/ when/ she/ work. → __________________________________________________________________ 23. We/ work/ this company/ 2008. → __________________________________________________________________ 24. Canberra/ be/ capital city/ Australia. → __________________________________________________________________ 25. There/ many/ English/ speaking countries/ the world → __________________________________________________________________

I. John’s asking for some information about the museums in Ho Chi Minh City. Listen carefully and choose the best answer for each question (1m).

1. What museum does John want to visit?

A. Viet Nam Museum of Ethnology

B. Viet Nam History Museum

C. Viet Nam Museum of Revolution

2. Which period does the war Remnants Museum focus on?

A. Viet Nam war B. World war II C. The Civil war

3. Which museum displays the diversity of Viet Nam?

A. Viet Nam History Museum

B. Viet Nam Museum of Ethnology

C. War Remnants Museum

4. Where is Ho Chi Minh Museum?

A. In Ho Chi Minh City B. In Nghe An C. In Ha Noi

5. Why does Minh recommend Cham Museum?

A. He loves the museum.

B. He had a great time visiting the museum.

C. His friends recommend the museum.

GIÚP EM 6 CÂU NÀY VỚI Ạ 1. The jar __________ peanut butter. A. contain B. is containing C. contains D. has contained 2. Ho Chi Minh city ________ in the south of Viet Nam. A. is lying B. lie C. lies D. lay 3. One of my shoes __________ off as I was climbing out of the pit. A. fell B. was falling C. has fallen D. had fallen 4. She ______ down the hill when I ___________ her. A. ran/ was seeing B. had run/ saw C. was running/ saw D. ran/ saw 5. All kinds of wonderful toys _______ at that shop. A. sold B. were selling C. are being sold D. have sold 6. They _______ when the thief _______ their house. A. are sleeping/ enters B. were sleeping/entered C. slept/ was entering D. were sleeping/ was entering

IV. Choose the best answer from A,B,C or D.

  21). Minh is interested .................. the history of Viet nam.

           A). on                             B). in                               C). about                        D). at

  22). A new school ................... in our neighborhood right now.

           A). is built                      B). is being built            C). is building                 D). is being build

  23). My car ....................  yesterday by him.

           A). was repaired          B). has been repaired  C). is repaired                D). can be repaired

  24). My nephew .................... to stay with me next weekend.

           A). come                        B). is coming                  C). will come                  D). comes

  25). ....................... does he have to work so hard? - To earn more money.

           A). Why                         B). Who                          C). What                         D). When

  26). Thank for inviting me to the ........................ festival.

           A). rice- cooked            B). cooking- rice            C). rice- cooking            D). cooked- rice 

  27). Children should ............................... to bed early.

           A). gone                         B). go                              C). goes                          D). went

  28). Don't worry about us. We can ...................

           A). look ourselves        B). look for ourselves  C). look after our self   D). look after ourselves

  29). She walked ............... the kitchen and put her packages ................... the table.

           A). in/ into                    B). on/ into                    C). into/ in                     D). into/ on

  30). I saw Peter at the party last night. He .................... a red dress

           A). wore                        B). was wearing            C). had worn                  D). wears

  31). your hair is long. It needs .......................

           A). cut                            B). cutting                      C). to cut                         D). had cut

  32). We have learnt English ............................ three years.

           A). at                              B). for                             C). in                               D). since

  33). You ................... forget what I told you. It is very important.

           A). must                         B). have to                     C). can't                          D). mustn't

  34). He doesn't look ...................... to be a famous boxer.

           A). enough strong        B). strong enough         C). weak enough           D). too weak

  35). My friend Nam is .................. He loves giving things to other people.

           A). skilled                      B). friendly                    C). direct                        D). generous

Ly Son Island

Although it isn't well-known to most people (0-plan) ___ planning ___their Viet Nam trips, Ly Son Island is a terrific beach destination in the (1-central) ____________of the Vietnamese East Sea. Beside its (2-nature) ____________beauty, Ly Son has its own rich history. (3-Research) ____________have found a lot of (4-archaeologic) ____________evidence there of the presence of people from the ancient Sa Huynh culture dating back thousands of years. The Cham empire also once used Ly Son as a (5-transship) ____________base. Being a former (6-volcano) ____________field, Ly Son has a pristine beauty that not many other islands in Viet Nam can match.