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Phân tích đa thức thành nhân tử: a) 4x^4 - 2x^2 + 5x +3 với nhân tử x+1 b) 3x^3 - 5x - 14 với nhân tử x - 2
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Exercise 3: Read the following passage and use the information provided in the passage to decide which word or phrase A, B, C or D that best describes London. The majority of London's inhabitants live in its suburbs. Many of them travel to the city to work every day by train, bus, tube or car. These people are called "commuters". Commuters may spend as much as two hours every morning getting to work and another two hours getting home again. The cost of living in London is higher than that in most other parts of Britain. Millions of visitors come to London every year from all over the world to see the famous sights here such as Buckingham Palace and many other historic buildings. London is also very famous for its theatres, red buses and black taxis. Some people find it a noisy and dirty place but it has many large, pleasant parks. Here, everyone can enjoy some peaceful and quiet moments. London has many attractions both people from other parts of Britain and people from overseas. 1. In London ................... . * A. more people live in the suburbs than in the city center. B. most people live in the suburbs than in the city center. C. less people live in the suburbs than in the city center. D. many people live in the suburbs than in the city center. 2. Commuters ................... . * A. live in the city center. B. live in the suburbs and travel to work in the city. C. live in the suburbs and work there. D. live in the city center and work there. 3. Living in London is ................... . * A. cheaper than in most other parts of Britain. B. more expensive than in most other parts of Britain. C. most expensive than in most other parts of Britain. D. more cheap than in most other parts of Britain. 4. London is famous for ................... . * A. its delicious food. B. its theatres but not its red buses. C. its theatres, red buses and black taxis. D. its inhabitants. 5. The attractions of London are ................... . * A. for the Londoners only. B. only for people from other parts in Britain. C. just for foreigners. D. both for foreigners and for people from other parts in Britain. Exercise 4: Choose the word or phrase - A, B, c or D - that best fits the blank. Mexico City is growing quickly. In 1970, the city had about 9 million people. Now it has over 17 million. All these people are causing (1) ................... . for the city. There are not (2) .................... jobs. Also, there is not enough housing. Large families have to live together in small homes. Many homes do not have water. They also do not have bathrooms or electricity. The Mexican government is (3) .................... about all these problems. It is working hard tomake (4) .................... better in the city. Why is Mexico City growing so ( 5) .................... ? Where are all these people coming from? They are coming to the city from the country. Life is hard on the farms in Mexico. Most people on farms have to live a very simple life. They have no ( 6) .................... money for modern things. People think life in the city must be (7) .................... So they leave their farms and move to Mexico City. All around the world, large cities have the same problems. One of them is air (8) .................... Mexico City has bad air. It is dirty and (9) ................... . Cars are one reason for the dirty air. Many Mexicans now own their own cars and drive in the city. The factories in the area also cause air pollution. These factories put a lot of ( 10) .................... into the air. It is not easy to clean up the air in a large city. The government has to make new laws, and everyone hasto help. 1 * A. problems B. matters C. things D. news 2 * A. much B. more C. enough D. many 3 * A. worried B. interested C. discussed D. known 4 * A. duration B. circle C. live D. life 5 * A. normal B. fast C. slow D. average 6 * A. bonus B. extra C. added D. given 7 * A. bad B. good C. better D. best 8 * A. pollution B. matter C. complaint D. comment 9 * A. noisy B. tidy C. clear D. unhealthy 10 * A. dirt B. smoke C. noise D. pollution Exercise 1: Complete the second sentence so that it has a similar meaning to the first. Use the words in brackets. 1. This train is more convenient than all the others. (most) * 2. The living room isn't as large as the kitchen. (than) * 3. I'm not as fit as you. (am) * 4. The table and the desk are the same size. (big) * 5. The dress is cheaper than the skirt. (expensive) * 5. The dress is cheaper than the skirt. (expensive) * 6. Many people think there is no city in Viet Nam is cleaner than Da Nang city. ( clean) * 7. I found the trip to the craft village interesting. (interested) * 8. My father says the place in which we are living is the noisiest one in Ha Noi. (noisy) * 9. He hasn't changed much since I last met him in 2000. (same) * 10. I have never eaten a more delicious food than this one. (most) *

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