Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. 
The world’s oldest post office, which has been operating in Sanquhar, Scotland, for more than 300 years, faces an uncertain future. Current owner and stamp collector, Manzoor Alam, and his wife, Nazra, have been forced to put the business and its accompanying cottage on the market due to ill health.
The Alams are “heartbroken” to leave the post office, and are concerned that if a buyer cannot be found its rich history could be lost. “It was my husband who was always the one most interested in stamps and the postal service but over the last few years of working here it has grown on me too,” said Mrs Alam. The couple are the post office’s 16th postmasters, and if they become the last, the title will fall to a Stockholm branch, which opened in 1720.
Dumfries and Galloway councillor, Andrew Wood, said lots of rural areas were struggling to keep their post offices open. He said it would be a “sad day” if the business folded. “I was wondering if the community could arrange a buyout but it shouldn’t come down to that,” he said. “We’re a wealthy country and should be able to have them in good-sized towns.”
The property is on the market for £275,000, and includes a three-bed cottage with two bathrooms, a large living room, and garden with outbuildings. Agent Humberstones suggests the outbuilding could be a holiday let, tea room or postal museum, as Mr Alam had planned. “My ambition is to promote the rich heritage of the past by establishing a postal museum — the only one in Scotland — and combining it with a modern business, securing this wonderful post office for future generations,’” he had said when he took on the business.

According to paragraph 2, what is NOT mentioned about the owners of Sanquhar post office?

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 6 to 10.
Some years ago, my daughter was studying English at a university on the south coast. One evening, she phoned to (6)_________ me that what she really wanted to do was a travel round the world, (7)_________ she was looking into the possibility of working in another country. She had seen several advertisements in the paper for student teachers of English abroad, and she was interested in one in Italy, (8)_________ she was desperate to visit.
She decided that this would be a good way to achieve her ambition, so she was writing to apply for the job. The reply (9)_________ a long time to arrive, but eventually she received a letter asking if she would go for an interview in London the following week. She was so excited that she immediately got in touch with the school owner and agree to attend the interview . She was determined that nothing would prevent her (10)_________ doing what she had set out to do.
(8)...................

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 6 to 10.
Some years ago, my daughter was studying English at a university on the south coast. One evening, she phoned to (6)_________ me that what she really wanted to do was a travel round the world, (7)_________ she was looking into the possibility of working in another country. She had seen several advertisements in the paper for student teachers of English abroad, and she was interested in one in Italy, (8)_________ she was desperate to visit.
She decided that this would be a good way to achieve her ambition, so she was writing to apply for the job. The reply (9)_________ a long time to arrive, but eventually she received a letter asking if she would go for an interview in London the following week. She was so excited that she immediately got in touch with the school owner and agree to attend the interview . She was determined that nothing would prevent her (10)_________ doing what she had set out to do.
(6)...................

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 6 to 10.
Some years ago, my daughter was studying English at a university on the south coast. One evening, she phoned to (6)_________ me that what she really wanted to do was a travel round the world, (7)_________ she was looking into the possibility of working in another country. She had seen several advertisements in the paper for student teachers of English abroad, and she was interested in one in Italy, (8)_________ she was desperate to visit.
She decided that this would be a good way to achieve her ambition, so she was writing to apply for the job. The reply (9)_________ a long time to arrive, but eventually she received a letter asking if she would go for an interview in London the following week. She was so excited that she immediately got in touch with the school owner and agree to attend the interview . She was determined that nothing would prevent her (10)_________ doing what she had set out to do.
(9)...................

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.

Imagine you are buying an apple in a supermarket. Which do you choose, one with a small bro or one without? Be honest - you'd go for the apple (1) _________looks perfect. Supermarkets do this too on a much larger scale when buying fruit and vegetables from farmers. And what (2) ______of the on with marks on them? They are thrown away. So are the ones that are a funny shape or size.

(3) _______ reason for waste is that people buy more food than they can eat and supermarkets de everything they can to encourage this, for example with offers like 'Buy one, get one free'. Developed countries waste about 650 million tons of food each year and so do developing countries. (4) _____the waste happens for very different reasons. As the world's population grows, this problem will only (5) _________ so we need to take action urgently.

(Adapted from Navigate)

(2) ________

Read the text below and decide which answer (A,B,C, or D) best fits each space.
MY FIRST JOB

When I was 19, I (58) …….. out of my university course and ended up getting a job in a local travel agent’s. I’d seen the (59) …….. for the job in local paper. It said they wanted someone with a nice (60) …….. and a friendly (61) …….. .I thought the job might be an (62) …….. to send people to interesting places and to see some of the world myself. (63) …….. , it turned out to be a bit of a joke. I arrived at work on the first day with a positive (64) …….., ready to work and learn about new places. I spent that morning and every morning for the first three months filling (65)…….. forms and making coffee for the rest of the staff. (66) …….. I was hoping to be dealing with travel-hungry people with a good idea of where they wanted to go, the (67) …….. customer took ages to make their mind (68) …….. . It was amazing the number  of  customers  who  would  spend  ages  finding  the  perfect  destination  only  to have a change (69) …….. heart at the last moment. If we did organize the trip of a lifetime for someone, we rarely got thanks (70) …….. all our efforts. I now work in publishing (71) …….. a living, so these days I’m a customer in travel agencies. One thing I always keep (72) …….. mind is the need to say thank you.

69................

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 6 to 10.
Some years ago, my daughter was studying English at a university on the south coast. One evening, she phoned to (6)_________ me that what she really wanted to do was a travel round the world, (7)_________ she was looking into the possibility of working in another country. She had seen several advertisements in the paper for student teachers of English abroad, and she was interested in one in Italy, (8)_________ she was desperate to visit.
She decided that this would be a good way to achieve her ambition, so she was writing to apply for the job. The reply (9)_________ a long time to arrive, but eventually she received a letter asking if she would go for an interview in London the following week. She was so excited that she immediately got in touch with the school owner and agree to attend the interview . She was determined that nothing would prevent her (10)_________ doing what she had set out to do.
(7)...................

Read the following passage and mark A, B, C, or D to indicate the correct answer to each of the blanks from 46 to 50.
University researchers have taken samples from a preserved dodo specimen in an (46)         to uncover the extinct bird‟s family tree. They worked with the British Natural History Museum to collect and study genetic material from large number of specimens: a preserved dodo, the extinct solitaire bird, and 35 kind of living pigeons and doves. Their analysis (47)           the doo and the solitaire to be close relatives with the Nicobar pigeon, their nearest living relative. The dodo lived on Mauritius in the Indian Ocean. It was a flightless bird, bigger than a turkey. By 1681, all dodos had been (48)      by hungry sailors. The    solitaire, which looked a bit like a dodo, had gone the same way by 1800. By extracting short pieces of the dodo‟s DNA and (49)        these with the DNA of living birds, the scientists were able to deduce when the dodo evolved away from its relatives into a separate entity. The scientists can now (50)       assume that the dodo developed its distinctive appearance and features as a result of its geographical isolation. They are now convinced that it separated from the solitaire about 25 million years ago, long before Mauritius became an island.
(50).................

Read the passage below and decide whether the statements are TRUE or FALSE?

When a child learns to read and write, he must access the schema developed in his brain. As he reads, the child creates pictures in his mind and uses imagination and points of reference to put the story together. Television images do not go through a complex symbolic transformation. The mind does not have to decode and manipulate during the television experience. Watching television and playing video games do not develop a child's skills in word recognition, decoding, vocabulary, spelling or high-level thinking. The connection between television's effects on children's reading abilities and the decline in their writing skills is clear: there is no question in the minds of educators that a student who cannot read with the true comprehension will never learn to write well. Writing, after all, is book talk, and you only learn book talk by reading. It has been shown that reading stimulates brain activity. While reading, we imagine settings, characters and we become part of the world of the story. Conversely, it has been shown that watching television prevents brain activity. Children who watch too much television are less socially developed and have problems maintaining concentration. Reading, instead of watching television, enriches our lives, develops the imagination, and intellect, and is less brain deadening. Reading is good for us, it makes one a better person.

A child can learn book talk through reading activities.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrases that best fits each of the numbered blanks from 46 to 50.
ABROAD WITH US
The company study abroad was originally founded in 1991 for students who wished to study French in France. Its success led to the establishment of other schools around the world.
Learning the language in the country in which it is spoken is, of course,a (46)_________ more effective and faster process than studying in your own country. It is also an opportunities to mix with local habitants and (47) _________ a greater and deeper (48) _________ of the people whose language you are studying. This makes the whole experience much more enjoyable.
You may wish to attend an Italian language and a cooking course in Italy or combine a Portuguese course with a sport. You should look at all the possibilities and (49) _________ the best choice.
In order to choose  the (50)_________ course and location for you, we suggest you contact us to discuss your particular requirements. From the information you give us, we can make some recommendation.
(49).......................

Read the passage carefully, then choose the correct answer. 
A higher reading rate, with no loss of comprehension, will help you in other subjects as well as in English, and, the general principles apply to any language. Naturally, you will not read every book at the same speed. You would expect to read a newspaper, for example, much. more rapidly than physics or economics textbook — but you tan raise your average reading speed over the whole range of materials you wish to cover so that the percentage gained will be the same whatever kind of reading you are concerned with. 
The reading passages which follow are all of an average level of difficulty for your stage of instruction. They are all about five hundred words long. They are about topics of general interest which do not require a great deal of specialized knowledge. Thus they fall between the kind of reading you might find in your textbooks and the much less demanding kind you will find in a newspaper or light novel. If you read this kind of English, with understanding at four hundred words per minute, you might skim through a newspaper at perhaps 650 - 700 words per minute while with a difficult textbook you might drop to two hundred or two hundred and fifty. Perhaps you would like to know what reading speeds is common among native English-speaking university students and how those speeds can be improved. Tests in Minnesota, USA, for example, have shown that students without special training can read English of average difficulty, for example, Tolstoy's War and Peace in translation, at speed of between 240 and 250 words per minute with about seventy percent comprehension. Students in Minnesota claim that after twelve-half-hour lessons, once a week, the reading speed can be increased, with no loss of comprehension, to around five hundred words per minute.

Art critics do not all agree on what________ a painting great

Read the text below and decide which answer (A,B,C, or D) best fits each space.
MY FIRST JOB

When I was 19, I (58) …….. out of my university course and ended up getting a job in a local travel agent’s. I’d seen the (59) …….. for the job in local paper. It said they wanted someone with a nice (60) …….. and a friendly (61) …….. .I thought the job might be an (62) …….. to send people to interesting places and to see some of the world myself. (63) …….. , it turned out to be a bit of a joke. I arrived at work on the first day with a positive (64) …….., ready to work and learn about new places. I spent that morning and every morning for the first three months filling (65)…….. forms and making coffee for the rest of the staff. (66) …….. I was hoping to be dealing with travel-hungry people with a good idea of where they wanted to go, the (67) …….. customer took ages to make their mind (68) …….. . It was amazing the number  of  customers  who  would  spend  ages  finding  the  perfect  destination  only  to have a change (69) …….. heart at the last moment. If we did organize the trip of a lifetime for someone, we rarely got thanks (70) …….. all our efforts. I now work in publishing (71) …….. a living, so these days I’m a customer in travel agencies. One thing I always keep (72) …….. mind is the need to say thank you.

71.....................

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.

I’m standing on a sidewalk in the early morning. The great avenues of Paris are silent, and the shops are closed. Suddenly, a couple appeared from a hole in the sidewalk. Mud covers their boots. They place the iron cover over the hole and run down the street, smiling. The couple had been exploring the tunnels beneath the city.

When Romans occupied Paris, they cut down stone from deep within the earth to build their city. Later, the French used more stone to construct the Notre Dame Cathedral. This left huge underground tunnels upon which part of the city now. Once used for growing mushrooms and as a hiding place, today they are mostly forgotten, except by "cataphiles" - those who love to go down into the tunnels below Paris, even though it is actually not permitted.

In the 70s and 80s, it is easier to enter the tunnels because there were many more open entrances through forgotten doorways and into catacombs - rooms filled with bones. The bones had been moved into the tunnels to solve the problem crowded cemeteries. By the end of the 1980s, most of the entrances were shut and police regularly walked the tunnels. However, there are still cataphiles, like the couple I saw that morning, and for those who dare, the underground is an exciting place to meet, party, perform for each other or create art.

My own experience began beneath the old Paris opera house, where sewer workers showed me a 55-meter-long underground pond, a pond that actually had fish in it! Later, at France's national bank, officials guided me below to an amazing room filled with 2,600 tons of gold.

As cataphiles are the best guides, I then asked one of the cataphiles to give me a tour. Descending into the underground through a secret entrance beneath a bridge, we walked for hours through catacombs, and galleries of huge, bright paintings. The cataphile told me "Many people come down here to party, some to paint. Some people to destroy or to create or to explore. We do what we want, We don't have rules..."

(Adapted from Reading Explorer 2, Paul Macintyre&David Bohlke, 2015)

Why did it use to be easier to enter the tunnels?

Read the text below and decide which answer (A,B,C, or D) best fits each space.
Postsecondary institutions and private schools are corporations under U.S. law.  They are approved to operate as non-profit, for-profit, or public corporations (1)  _______ education and training. Increasingly, state authorities are requiring  approved educational providers to apply (2) _______ and receive accreditation  as a condition of final and continued approval. 
As corporate entities, U.S. institutions are internally self-governing and are (3)  _______ to make property, facilities, equipment, and utilities transactions; make  their own personnel decisions; decide whom to admit to study and to graduate;  (4) _______ their own funds from outside sources; enter into contracts and  compete for grants; and do most of the other things that corporations do.  Institutions compete (5) _______ one another for students, research funding,  faculty, and other benefits. Public institutions may compete within the same  state or territory for budget appropriations. It is the corporate nature of  institutions and the competition within the system that (6) _______ Americans  to refer to the concept of the educational or academic marketplace - an important distinctive element of the way U.S. education is organized. 
Some institutions are governed (7) _______ under multi-campus arrangements.  These include most local public schools (governed by school districts) and many  state community college and university systems. Whether single- or multi campus, institutional corporations (8) _______ by boards of citizens, both  alumni and non- alumni, who are ultimately responsible for all operations. They  appoint senior (9) _______, such as principals, headmasters, presidents, and  deans; and approve the actions taken (10) ______ their name. 

2........................

Read the following passage and choose the best answer for each blank.

AUDIOBOOKS - BOOKS ON CASSETTE

In the modern world, there is a wealth of leisure activities to choose from. Entertainment industries (26)________ for your leisure time. You can watch TV, listen to music, go to an art gallery or concert or, of course, read a book. Sometimes it seems that reading is (27)________because, even if you're a fast reader, it can take a (28)________amount of time to finish a novel, for example. But in the (29)________world, time is something that can be in short supply. Book publishers haven't been (30)________to realise this and are now selling a product which needn't (31)________as much of your time but still tells you an excellent story. The new product is the audiobook -cassette recordings of shortened novels, often read by well-known personalities or the authors themselves. Audiobooks are (32)________new but people are becoming more aware of them and sales are increasing all the time. One of the attractions of audiobooks is that they're (33)________listening to the radio. You can listen to what you want when you want, and you won't ever (34)________anything. Much of their appeal lies in their flexibility. They (35)________you to do other things while you're listening, such as driving or doing the housework. For some people, audiobooks can be a much more enjoyable way of gaining knowledge than reading.

(28)________

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. 
      Sixty percent of working Americans today say they’ve left a job, or considered leaving a job, because they didn’t like their direct supervisor, according to a survey from human resource consulting firm Randstad US. Though leaving a job may seem like the best solution for retiring a bad boss, that doesn’t mean that it’s always the best plan for your career. In fact, if you’re in a situation where you love your job and the opportunities it presents, then leaving your role because of a difficult boss may not be the best idea. Pollak and Monster.com career expert Vicki Salemi broke down three ways you can deal with a bad boss without quitting a job you love. 
      Pollak says that in many cases, a difficult relationship with your boss is often due to differing personalities and habits. One way to mend this relationship, she says, is to closely study your boss’s behavior so that you can meet their expectations. “Become the world’s leading expert on your boss or your manager,” says Pollak, who is also the author of the book “The Remix: How to Lead and Succeed in the Multigenerational Workforce.” “How does this person like to communicate? If she hates long emails, stop sending long emails. If she doesn’t like it when you drop by her office but reacts better when you schedule an appointment, then learn to always schedule appointments instead of dropping in. If she is not a morning person, don’t ask for things in the morning. If this person is really detail-oriented, then triple check your documents before handing them in.” Salemi agrees. She says that if you have a boss who’s critical or a micromanager, often the best way to deal with them is to be proactive in meeting their needs. “It’s kind of like you’re managing them without making it seem like you’re managing them,” she says.
      When dealing with a difficult boss, Pollak says one of the best ways to figure out how to successfully work under their leadership is to talk to other people who you know have been in a similar situation. “Other people can be a resource, whether it’s a mentor, someone at a different company, a coach or people who have worked for this person in the past,” she says. “Treat it as a positive and say, ‘I really want to be successful working with X. What recommendations do you have?’” However, she emphasizes, you should never talk about the situation in a negative way, or say you don’t like working for your boss. Instead, discuss about the situation in a way that shows your willingness to adapt to make the relationship work.
      If talking to other colleagues isn’t helpful, then Pollak says one of your last options should be to talk directly to your boss. Consider your approach carefully. Instead of saying, “We’re not getting along. What should we do?”, say something to the effect of, “I’d really like to make sure that I’m serving your needs. I’d like to make sure that I’m communicating in a way that’s effective for you and I want to make sure that I’m being as productive as possible. Is there anything I can do differently?” This way, she says, you’re approaching the situation by asking how you can help, instead of emphasizing a problem.

Which best serves as the main idea of the passage?

Choose the word or phrase among A, B, C or D that best fits the blank space in the following passage: 

"Books are written to provide knowledge and good books enrich the mind. By putting (1)…. under the influence of superior mind, we (2) ….. our mental powers. (3)…. good books, we learn that people everywhere are the (4) ......., in ali ages, and in all (5)…. . This knowledge improves our love (6)…. others and helps us to live in peace with them.
 We also (7)…. that the world was made not only for man (8)…. but for every creature that can feel hunger and thirst, warmth and cold. Though it may be possible for us to travel (9)…. the world and see the things happening today, it is not possible for us to see the things that happened in the past. But good books (10) …..us to see not only into the most remote regions of the world today, but also into the world in which our ancestors lived."

3. (3)…. good books, we learn that people everywhere

Read the text and choose the best answer (A, B, C or D) to each of the questions. 
Poles Apart
Many are surprised to learn that Antarctica is nearly twice the size of the United States. The name Antarctica was coined to mean "opposite to the Arctic." It is just that in many ways. Antarctica is a high, ice-covered landmass. In the Arctic the landmasses are grouped around the ice-covered Arctic Ocean.
Largely because of this difference, the climate of the two areas is very different. Antarctica is the coldest area in the world. On the average it is about 30 degrees colder than the Arctic. At the South Pole, nearly 10.000 feet high, monthly mean temperatures run well below zero. Only in coastal regions do temperatures sometimes rise about freezing in the summer (December to March). In contrast, near the North Pole monthly mean temperatures often rise above freezing. 
At both poles, daily temperatures may drop far below the monthly mean. At the American South Pole Station, winter temperatures sometimes fall below -100 degrees Fahrenheit. Elsewhere, on higher parts of the south polar plateau, even lower temperatures are recorded.
A temperature of -127 degrees Fahrenheit was measured in August 1960. It is the world's record low temperature.
Partly because of this climatic difference, the land animals and plants of the two regions are very different. On the continent of Antarctica, there are very few plants. In the Arctic there are many plants. In some of the few ice-free areas of Antarctica, mosses, lichens, and algae are found. Penguins populate Antarctic coastlines but do not exist in the Arctic. The land animals of the Arctic are foxes, bears, reindeer, and lemmings. These animals are unknown in the Antarctic. Old rock layers show that this "oppositeness" between north and south extends far back into the early chapters of earth history.
Ice is the great feature of Antarctica. More than 4.5 million square miles of ice sheet cover the area. Great rivers of ice, called glaciers, push down the mountains. Antarctica is the storehouse of about 85 percent of the total world supply of ice. 
The icecap is very thick, averaging nearly 8,000 feet. At one spot, scientists have found the distance from the surface to the rock underneath the ice to be more than 13,000 feet.
If this great volume of ice were to melt, the volume of the world oceans would increase, and sea level would rise. Extreme atmospheric changes would have to take place for this to happen.

The world's record low temperature was recorded in _________.

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 following questions.

Let children learn to judge their own work. A child learning to talk does not learn by being corrected all the time. If corrected too much, he will stop talking. He notices a thousand times a day the difference between the language he uses and the language those around him use. Bit by bit, he makes the necessary changes to make his language like other people's. In the same way, children learn all the other things they learn to do without being taught - to talk, run, climb, whistle, ride a bicycle - compare their own performances with those of more skilled people, and slowly make the needed changes. But in school we never give a child a chance to find out his mistakes for himself, let alone correct them. We do it all for him. We act as if we thought that he would never notice a mistake unless it was pointed out to him, or correct it unless he was made to. Soon he becomes dependent on the teacher. Let him do it himself. Let him work out, with the help of other children if he wants it, what this word says, what the answer is to that problem, whether this is a good way of saying or doing this or not.

     If it is a matter of right answers, as it may be in mathematics or science, give him the answer book. Let him correct his own papers. Why should we teachers waste time on such routine work? Our job should be to help the child when he tells us that he can't find the way to get the right answer. Let's end all this nonsense of grades, exams, and marks. Let us throw them all out, and let the children learn what all educated persons must someday learn, how to measure their own understanding, how to know what they know or do not know.

     Let them get on with this job in the way that seems most sensible to them, with our help as school teachers if they ask for it. The idea that there is a body of knowledge to be learnt at school and used for the rest of one's life is nonsense in a world as complicated and rapidly changing as ours. Anxious parents and teachers say, “But suppose they fail to learn something essential, something they will need to get on in the world?" Don't worry! If it is essential, they will go out into the world and learn it.

What does the author think is the best way for children to learn things?

Read the following the passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrasethat best fits each of the numbered blanks from 31 to 35.
From the next year, every student in their final rear at our school will study for a compulsory Diploma of Practical Achievement. This will be in addition to the normal examinations. Up to now, the course has been optional, but from now on every student must (31)        it.
The aim is to (32)   students with "life skills", which the Diploma divides into eight categories. These cover a range of things relevant to life beyond school, from sending an e-mail to giving presentation  to  an  audience.  Under  the  heading     "survival",  (33)      ,  students   can learn  car mainternance, first aid and cooking. We have discovered that many students cannot do simple things such as mend a puncture or boil an egg. At the other extreme, the Diploma includes such things as how to design a webpage and how to cope if someone has a heart attack. It has been called a " Diploma in Common Sense".
On the course, students will not be taught in the traditional (34)  
  , but rather will be guided and encouraged to do things for themselves. This is above all a practical "hand-on" course. To a greater or lesser extent, good schools have always tried to (35)        these skills. Unfortunately, students have not always shown much interest because such skills are not directly related to passing exams for higher education. We hope this will change now that we have a proper course that will lead to a recognised diploma.
(35)..................

Many of the most damaging and life-threaling types of weather-torrential rains, severe thunderstorms, and tornadoes-begin quickly, strike suddenly, and dissipate rapidly, devastating small regions while leaving neighboring areas untouched. One such event, a tornado, struck the northeastern section of Edmonton, Alberta, in July 1987. Total damages from the tornado exceeded $250 million, the highest ever for any Canadian storm. Conventional computer models of the atmosphere have limited value in predicting short-live local storms like the Edmonton tornado, because the available weather data are generally not detailed enough to allow computers to discern the subtle atmospheric changes that precede these storms. In most nations, for example, weather balloon observations are taken just once every twelve hours at locations typically separated by hundreds of miles. With such limited data, conventional forecasting models do a much better job predicting general weather conditions over large regions than they do forecasting specific local events.
Until recently, the observation-intensive approach needed for accurate, very short range forecasts, or “Nowcasts”, was not feasible. The cost of equipping and operating many thousands of conventional weather stations was prohibitively high, and the difficulties involved in rapidly collecting and processing the raw weather data from such a network were insurmountable. Fortunately, scientific and technological advances have overcome most of these problems. Radar systems, automated weather instruments, and satellites are all capable of making detailed, nearly continuous observation over large regions at a relatively low cost. Communications satellites can transmit data around the world cheaply and instantaneously, and modern computers can quickly compile and analyzing this large volume of weather information. Meteorologists and computer scientists now work together to design computer programs and video equipment capable of transforming raw weather data into words, symbols, and vivid graphic displays that forecasters can interpret easily and quickly. As meteorologists have begun using these new technologies in weather forecasting offices, Nowcasting is becoming a reality.

The word “they” refers to ________.