Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27. Fill in the appropriate word in question 23

  Many Americans believe that manners have gotten worse and official figures confirm this. In a recent survey, nearly 70% said that people are (23) _____________ than they were 20 or 30 years ago. This is true of both large and small towns, although 74% of (24) _____________  living in cities said that people have become ruder, compared with 67% in rural areas. However, few people believe that they have bad manners themselves! For example, only 8% in the questionnaire (25) _____________  they have ever used their cell phones in public in a loud or annoying way. Many people (26) new technology for our changing manners. Computers, MP3 players, and cell phones take us away from face-to-face contact, as well as being very annoying in public places. “All of these things result in a world with more stress, more chances for people to be rude to each other,” said Peter Post, an instructor on business manners.

  But what can we do about it? Some people would like to see a rail car (27) _____________ for cell phone users so that the rest of us can travel in peace and quiet. In fact, one train company, Amtrak, has banned cell phones in one car of some trains, which is called a “Quiet Car”.

A. confess

B. admit

C. accept

D. agree

Nhóm chức có trong tristearin là

A.  Andehit

B.  Este

C. Axit

D. Ancol

* Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 24 to 30.

MEGACITY: A NEW KIND OF CITY

  A term 'megalopolis' (or megacity) was first used by French geographer Jean Gottman to describe the north-eastern United States in 1961. The term is used more widely now and is defined as an urban area of more than 10 million inhabitants dominated by a low-density housing. In 1995 there were 14 megacities. By 2020 there could be 30.

  Megacities are the result of the process of urbanization. After cities grew into crowded urban centres, people who could afford to move into suburbs at the edge of the city. When the suburbs in turn became crowded, people moved into villages and dormitory towns outside the city, but within commuting distance. In this way, for the first time since industrialisation, the countryside began to gain population, whereas cities lost their inhabitants. In the 1980s St Louis and Detroit in the America lost between 35 and 47 per cent of their populations and London lost 15 per cent in the 20 years to 1971.

  However, this movement away from cities does not mean that the city is dying. In fact it is spreading. From the old city develops a metropolitan area with many low-level urban developments. When these metropolitan areas merge together, they form megacities which contain over 10 million people. The largest of these is in America, called Boswash - a region over 300 miles long from Boston in the north to Washington, DC in the south with more than 44 million people. There are emerging megalopolises in Britain centred around London and the south-east, in Germany in the industrial region of the Ruhr and Japan in the Tokyo-Osaka-Kyoto region.

(adaptedfrom Archive IELTS (2013), Louis Harrison et al., Cengage Learning)

 A megacity is characterised by___________.

A. number of centres

B. high-rise apartment buildings 

C. those who move from villages

D. low-level urban developments