Choose the letter A, B, C or D to complete the passage below 

Football, also called association football or soccer, game …(6)…which two teams of 11 players, using any part of their bodies …(7)…their hands and arms, try to maneuver the ball into the opposing team’s goal. Only the goalkeeper is permitted to handle the ball and may do so only within the penalty area surrounding the goal. The team that scores more goals wins.

Football is the world’s most popular ball game in numbers of participants and …(8)…. Simple in its principal rules and essential equipment, the sport can be played almost anywhere, …(9)…official football playing fields (pitches) to gymnasiums, streets, school playgrounds, parks, or beaches. Football’s governing body, the Fédération Internationale de Football Association (FIFA), estimated that at the turn of the 21st century there were …(10)… 250 million football players and over 1.3 billion people “interested” in football; in 2010 a combined television audience of more than 26 billion watched football’s premier tournament, the quadrennial month-long World Cup finals.

Simple in its principal rules and essential equipment, the sport can be played almost anywhere, …(9)…official football playing fields (pitches) to gymnasiums, streets, school playgrounds, parks, or beaches.

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.

   Supernovas are the most powerful and spectacular outbursts known in nature. What is called a Type II supernova is due to the collapse of a massive star, at least eight times as massive as the sun, that has used up its main nuclear fuel and produced a nickel-iron core. When this core can no longer support the pressure of the star’s outer layer, it collapses to form a neutron star of immense density. Over 2,500 million tons of neutron star packed into a matchbox. Its temperature is around 100,000 million degrees centigrade.

   Multitudes of neutrons are produced in the collapsed star, which pass directly through the star into space, and this release of neutrons causes the core to respond with a shock wave that moves outward.

   When it meets the material that is falling inward, the result is a catastrophic explosion. Sometimes most of the star’s material is blown away, leaving only a small, incredibly dense remnant that may be a neutron star or, in extreme cases, a black hole.

   A supernova is often more than 500 million times as luminous as the sun. A supernova remnant (SNR) may be detectable as a pulsar, an example of which is the Crab Nebula, known to be a remnant of the supernova observed in the year 1054. The 1987 supernova in the Large Cloud of Magellan had a low peak luminosity by supernova standards, only about 250 million times that of the sun. As its brightest the supernova shone as a star between magnitudes 2 and 3, even though it was 170,000 light-years away.

According to the passage, which of the following is TRUE about the 1987 supernova?

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 26 to 30.
The Best Students
According to most professors, mature students are ideal students because they are hard-working and become actively involved in all aspects of the learning process. The majority of mature students have a poor educational (26) ________ but they manage to do exceptionally well at tertiary level. (27) _______ many of them have a job and children to raise, they are always present at seminars and lectures and always hand in essays on time. They like studying and writing essays and they enjoy the class discussions (28) _______ take place. Consequently, they achieve excellent results. In fact, as they have experienced many of life's pleasures, they are content with their lives and this has a positive effect on their attitude, making them eager to learn.
On the other hand, despite their enthusiasm and commitment, mature students suffer from anxiety. The fact that they have made (29) ______ sacrifices to get into university puts extra pressure on them to succeed. Nevertheless, completing a degree gives mature students a sense of achievement, (30) ______ their confidence and improves their job prospects.
Question 27:.....................

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.

The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. In the 1960s, scientists discovered byproducts of the pesticide DDT in the birds' eggs, which caused them to be too soft to survive. The use of the pesticide had been banned in the United States, but the falcons were eating migratory birds from other places where DDT was still used. In order to increase the survival rate, scientists were raising the birds in laboratories and then releasing them into mountainous areas. This practice achieved only moderate success, however, because many of the birds raised in captivity could not survive in the wild.

There is now, however, a new alternative to releases in the wild. A falcon that has been given the name Scarlett chose to make her home on a ledge of the 33rd floor of a Baltimore, Maryland, office building rather than in the wild, and, to the surprise of the scientists, she has managed to live quite well in the city. Following this example, programs have been initiated that release birds like Scarlett into cities rather than into their natural wild habitat. These urban releases are becoming a common way to strengthen the species. Urban homes have several benefits for the birds that wild spots do not. First, there is an abundance of pigeons and small birds as food sources. The peregrine in the city is also protected from its main predator, the great horned owl. Urban release programs have been very successful in reestablishing the peregrine falcons along the East Coast. Though they are still an endangered species, their numbers increased from about 60 nesting pairs in 1975 to about 700 pairs in 1992. In another decade the species may flourish again, this time without human help.

Why were the peregrine falcons in danger?

Choose the letter A, B, C or D to complete the passage below

Football, also called association football or soccer, game …(1)…which two teams of 11 players, using any part of their bodies …(2)…their hands and arms, try to maneuver the ball into the opposing team’s goal. Only the goalkeeper is permitted to handle the ball and may do so only within the penalty area surrounding the goal. The team that scores more goals wins.

Football is the world’s most popular ball game in numbers of participants and …(3)…. Simple in its principal rules and essential equipment, the sport can be played almost anywhere, …(4)…official football playing fields (pitches) to gymnasiums, streets, school playgrounds, parks, or beaches. Football’s governing body, the Fédération Internationale de Football Association (FIFA), estimated that at the turn of the 21st century there were …(5)… 250 million football players and over 1.3 billion people “interested” in football; in 2010 a combined television audience of more than 26 billion watched football’s premier tournament, the quadrennial month-long World Cup finals.

(1)......................

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

"Many outdoor (1)….. enjoy canoeing or kayaking (2) ….. recreation on ponds, lakes, and rivers. Some people use canoes and kayaks to travel across bodies of water to remote camping locations. They (3)…. Their supplies, such as tents, sleeping bags, and food, in their boats. The Boundary Waters Canoe Area Wilderness and Voyageurs National Park, both (4)…..  along the border between Minnesota and Ontario, Canada, are two of the most popular canoeing areas in North America.
 Whitewater canoeing and kayaking on fast-flowing rivers is another popular activity. The (5)….. whitewater refers (6)........ the burbling foam created when fast-moving water spills over and around rocks or other (7)….. Whitewater enthusiasts maneuver their boats around rocks, logjams and other natural obstacles. If the current and obstacles (8)…… a passage (9)…. difficult to navigate, a canoeist might make a portage, or carry the canoe (10)…..  land for a short distance, thereby avoiding the danger."

5. The (5)….. whitewater refers

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.

   Traditionally in America, helping the poor was a matter for private charities or local governments. Arriving immigrants depended mainly on predecessors from their homeland to help them start a new life. In the late 19th and early 20th centuries, several European nations instituted public-welfare programs. But such a movement was slow to take hold in the United States because the rapid pace of industrialization and the ready availability of farmland seemed to confirm the belief that anyone who was willing to work could find a job.

   Most of the programs started during the Depression era were temporary relief measures, but one of the programs Social Security – has become an American institution. Paid for by deductions from the paychecks of working people, Social Security ensures that retired persons receive a modest monthly income and also provides unemployment insurance, disability insurance, and other assistance to those who need it. Social Security payments to retired persons can start at age 62, but many wait until age 65, when the payments are slightly higher. Recently, there has been concern that the Social Security fund may not have enough money to fulfill its obligations in the 21st century, when the population of elderly Americans is expected to increase dramatically. Policy makers have proposed various ways to make up the anticipated deficit, but a long-term solution is still being debated. In the years since Roosevelt, other American presidents have established assistance programs. These include Medicaid and Medicare; food stamps, certificates that people can use to purchase food; and public housing which is built at federal expense and made available to persons on low incomes. Needy Americans can also turn to sources other than the government for help. A broad spectrum of private charities and voluntary organizations is available. Volunteerism is on the rise in the United States, especially among retired persons. It is estimated that almost 50 percent of Americans over age 18 do volunteer work, and nearly 75 percent of U.S. households contribute money to charity.

That Social Security payments will be a burden comes from the concern that ______.

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.

The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. In the 1960s, scientists discovered byproducts of the pesticide DDT in the birds' eggs, which caused them to be too soft to survive. The use of the pesticide had been banned in the United States, but the falcons were eating migratory birds from other places where DDT was still used. In order to increase the survival rate, scientists were raising the birds in laboratories and then releasing them into mountainous areas. This practice achieved only moderate success, however, because many of the birds raised in captivity could not survive in the wild.

There is now, however, a new alternative to releases in the wild. A falcon that has been given the name Scarlett chose to make her home on a ledge of the 33rd floor of a Baltimore, Maryland, office building rather than in the wild, and, to the surprise of the scientists, she has managed to live quite well in the city. Following this example, programs have been initiated that release birds like Scarlett into cities rather than into their natural wild habitat. These urban releases are becoming a common way to strengthen the species. Urban homes have several benefits for the birds that wild spots do not. First, there is an abundance of pigeons and small birds as food sources. The peregrine in the city is also protected from its main predator, the great horned owl. Urban release programs have been very successful in reestablishing the peregrine falcons along the East Coast. Though they are still an endangered species, their numbers increased from about 60 nesting pairs in 1975 to about 700 pairs in 1992. In another decade the species may flourish again, this time without human help.

According to the passage, which of the falcon’s main predators?

Read the passage and choose the best answer:

Synchronized swimming is a hybrid form of swimming, dance and figure skating which consists of swimmers (either individuals, duets, trios, teams or combos) performing a synchronized routine of elaborate and dramatic moves in the water, accompanied by music. Synchronized swimming demands advanced water skills, and requires strength, endurance, flexibility, grace, artistry and precise timing, not to mention exceptional breath control while upside down underwater.

Developed in the early 1900s in Canada, it is a sport performed almost exclusively by women, although there is some participation by men. In its early form it was sometimes known as “water ballet”.

It is a Summer Olympic Games sport. First demonstrated in 1952, it has been an official event since 1984. Olympic and World Championship competition is not currently open to men, but other international and national competitions allow male competitors. Both USA Synchro and Synchro Canada allow men to compete with women. In competition, competitors show off their strength, flexibility, and aerobic endurance required to perform difficult routines. Swimmers perform two routines for the judges, one technical and one free.

It is a kind of sport that is only spent for female.

Synchronized swimming is a hybrid of swimming, gymnastics, and dance, consisting of swimmers (either individuals, duets, trios, teams or combos) performing a synchronized routine of elaborate and dramatic moves in the water, accompanied by music. 
Synchronized swimming demands proficient water skills, and requires strength, endurance, flexibility, grace, artistry and precise timing, not to mention exceptional breath control while upside down underwater. Developed in the early 1900 s in Canada, it is a sport performed almost exclusively by women, although there is some participation by men. In its early form it was some-times known as 'water ballet". 
It is a Summer Olympic Games sport. First demonstrated in 1952, it has been an official event since 1984. Olympic and World Championship competition is not currently open to men; but other international and national competitions allow male competitors: Both USA Synchro and Synchro Canada allow men to compete with women. 
Competitors show off their strength, flexibility, and aerobic endurance required to perform difficult routines. Swimmers perform two routines for the judges, one technical and one free.
Synchronized Swimming is governed internationally by FINA (Federation Internationale de Natation Amateur).

Synchronized Swimming __________

For more than six million American children, coming home after school means coming  back to an empty house. Some deal with the situation by watching TV. Some may hide. But all of  them have something in common. They spend part of each day alone. They are called “latchkey children”. They are children who look after themselves while their parents work. And their bad  condition has become a subject of concern. 
Lynette Long was once the principal of an elementary school. She said, “We had a school rule against wearing jewelry. A lot of kids had chains around their necks with keys attached. I was  constantly telling them to put the keys inside shirts. There were so many keys; it never came to  my mind what they meant.” Slowly, she learned that they were house keys. She and her husband began talking to the children who had keys. They learned of the effect working couples and single parents were having on their children. Fear was the biggest problem faced by children at home alone. One in three latchkey children the Longs talked to reported being  frightened. Many had nightmares and were worried about their own safety. The most common way latchkey children deal with their fears is by hiding. They may hide  in a shower stall, under a bed or in a closet. The second is TV. They often turn the volume up. It’s  hard to get statistics on latchkey children, the Longs have learned. Most parents are slow to admit  that they leave their children alone

What is the most common way for latchkey children to deal with fears? 

Read the text below and decide which answer (A,B,C, or D) best fits each space.
In a world where 2 billion people live in homes that don't have light bulbs, technology holds  the key (1)_______ banishing poverty. Even the simplest technologies can transform lives and  save money. Vaccines, crops, computers and sources of solar energy can all reduce poverty in  developing countries. For example, cheap oral-rehydration therapy developed in Bangladesh  has dramatically cut the death (2) _______ from childhood diarrhoea. 
But even when such technologies exist, the depressing fact is that we can’t make them (3)  _______ for those who most need them. Solar panels, batteries and light bulbs are still beyond  the purse of many, but where they have been installed they change lives. A decent light in the evening gives children more time for homework and extends the productive day for adults.  Kenya has a thriving solar industry and six years ago Kenyan pioneers also (4) _______  connecting schools to the Internet via radio links. These people were fortunate (5) _______  being able to afford solar panels, radios and old computers. How much bigger would the  impact be if these things (6) _______ and priced specifically for poor people? Multinationals must become part of the solution, because (7)_______ they own around 60 per  cent of the world's technology, they seldom make products for poor customers. Of 1,223 new  drugs marketed worldwide from 1975 to 1996, for example, just 13 were for tropical diseases. People think those enterprises should do more to provide vital products such as medicines (8) _______ different prices around the world to suit (9) _______ people can afford.  Alternatively, they could pay a percentage of their profit towards research and development  for (10) _______. 

Question 10: ...................

Read the text below and decide which answer (A,B,C, or D) best fits each space.
In a world where 2 billion people live in homes that don't have light bulbs, technology holds  the key (1)_______ banishing poverty. Even the simplest technologies can transform lives and  save money. Vaccines, crops, computers and sources of solar energy can all reduce poverty in  developing countries. For example, cheap oral-rehydration therapy developed in Bangladesh  has dramatically cut the death (2) _______ from childhood diarrhoea. 
But even when such technologies exist, the depressing fact is that we can’t make them (3)  _______ for those who most need them. Solar panels, batteries and light bulbs are still beyond  the purse of many, but where they have been installed they change lives. A decent light in the evening gives children more time for homework and extends the productive day for adults.  Kenya has a thriving solar industry and six years ago Kenyan pioneers also (4) _______  connecting schools to the Internet via radio links. These people were fortunate (5) _______  being able to afford solar panels, radios and old computers. How much bigger would the  impact be if these things (6) _______ and priced specifically for poor people? Multinationals must become part of the solution, because (7)_______ they own around 60 per  cent of the world's technology, they seldom make products for poor customers. Of 1,223 new  drugs marketed worldwide from 1975 to 1996, for example, just 13 were for tropical diseases. People think those enterprises should do more to provide vital products such as medicines (8) _______ different prices around the world to suit (9) _______ people can afford.  Alternatively, they could pay a percentage of their profit towards research and development  for (10) _______. 

 Question 9: .....................

Synchronized swimming is a hybrid of swimming, gymnastics, and dance, consisting of swimmers (either individuals, duets, trios, teams or combos) performing a synchronized routine of elaborate and dramatic moves in the water, accompanied by music. 
Synchronized swimming demands proficient water skills, and requires strength, endurance, flexibility, grace, artistry and precise timing, not to mention exceptional breath control while upside down underwater. Developed in the early 1900 s in Canada, it is a sport performed almost exclusively by women, although there is some participation by men. In its early form it was some-times known as 'water ballet". 
It is a Summer Olympic Games sport. First demonstrated in 1952, it has been an official event since 1984. Olympic and World Championship competition is not currently open to men; but other international and national competitions allow male competitors: Both USA Synchro and Synchro Canada allow men to compete with women. 
Competitors show off their strength, flexibility, and aerobic endurance required to perform difficult routines. Swimmers perform two routines for the judges, one technical and one free.
Synchronized Swimming is governed internationally by FINA (Federation Internationale de Natation Amateur).

It can be concluded from the passage that _________

Read the text below and decide which answer (A,B,C, or D) best fits each space.
THE HISTORY OF FOOTBALL

Football, or soccer, which is so popular all over the world, dates back to the Middle Ages.  At  that  (58)  ……..  it  was  very  different   from  the  game  we  play  today.  Any number of players could (59) …….. part and the matches usually developed into a free- for-all. In its modern (60) …….. , football is less than two hundred years old.

In 1846, the  first  rules  to  govern  the  game were  drawn (61) …….. at  Cambridge University. The number of players was (62) …….. to 11 per side, which made things much more (63) …….. than before. Later, in 1863, the Football Association was (64)…….. up to help promote the game in Britain.

The game is played on a grass or artificial (65) …….. with a goal net at each end. The (66) …….. is to move the ball around the field, (67) …….. the feet or head, until a player is in a (68) …….. to put the ball into the net and score a goal.

Professional football is not only the most popular (69) …….. sport in the world, (70)…….. also more people actually play football themselves than any other team sport. In 1904 FIFA, the world governing (71) …….. of football, was founded. It organizes the World Cup tournament every four years. Other kinds of football are popular, but less (72) …….. , for example American Football and Australian Rules Football.

63.................

Read the passage carefully, then choose the correct answer: 
Underwater hockey is a non-contact sport in which two teams compete to maneuver a puck across the bottom of a swimming pool into goals. 
Players wear a diving mask, fins, speedos and a snorkel for play_ Safety gear includes a water polo style cap, a mouthguard, and a glove for the playing hand (to protect against pool-bottom abrasion and, in some designs, knuckle protection against puck impact). Because current rules permit a player to switch the stick between hands mid-play, players may choose to wear a protective glove on both hands. The stick is quite short (not more than 350 mm in length, including the handle) and is colored white or black to indicate the player's team.
Two teams of up to ten players compete, with six players on each team in play at once. Substitution happens continually from a substitution area, which may be on deck or in the water outside the playing area, depending on tourna went rules. Before the start of play the puck is placed in the middle of the pool, and the players wait in the water, touching the wall above the goals they are defending. At the start-of-play signal, in- play members of both teams are free to swim anywhere in the play area and try to score by sending the puck into the opponents' goal. Play continues until either a goal is scored, and players return to their wall to start a new point, or a break in play is signaled by a referee. 
There are a number of penalties described in the official underwater hockey rules, ranging from use of the stick against something (or someone) other than the puck or the playing surface, playing or stopping the puck with something other than the stick, and "screening". If the penalty is minor, referees award an advantage puck - the team that committed the foul is pushed back 3 meters from the puck, while the other team gets a free possession. For major penalties, such as a dangerous pass or intentional or repeated fouls, the referees may eject. players for a specified period of time or the remainder of the game. A defender committing a serious foul sufficiently close to his own goal may be penalized by the award of a point to the fouled player's team.
Games consist of two halves, typically ten to fifteen minutes in length (depending on tournament rules; 15 minutes at world championship tournaments) and a short half time interval. At half time the two teams switch ends.

Players have to wear gloves....................

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.

   Millions of people are using cellphones today. In many places, it is actually considered unusual not to use one. In many countries, cellphones are very popular with young people. They find that the phones are more than a means of communication – having a mobile phone shows that they are cool and connected.

   The explosion in mobile phone use around the world has made some health professionals worried. Some doctors are concerned that in the future many people may suffer health problems from the use of mobile phones. In England, there has been a serious debate about this issue. Mobile phone companies are worried about the negative publicity of such ideas. They say that there is no proof that mobile phones are bad for your health.

   On the other hand, medical studies have shown changes in the brain cells of some people who use mobile phones. Signs of change in the tissues of the brain and head can be detected with modern scanning equipment. In one case, a traveling salesman had to retire at young age because of serious memory loss. He couldn’t remember even simple tasks. He would often forget the name of his own son. This man used to talk on his mobile phone for about six hours a day, every day of his working week, for a couple of years. His family doctor blamed his mobile phone use, but his employer’s doctor didn’t agree.

   What is it that makes mobile phones potentially harmful? The answer is radiation. High-tech machines can detect very small amounts of radiation from mobile phones. Mobile phone companies agree that there is some radiation, but they say the amount is too small to worry about.

   As the discussion about their safety continues, it appears that it’s best to use mobile phones less often. Use your regular phone if you want to talk for a long time. Use your mobile phone only when you really need it. Mobile phones can be very useful and convenient, especially in emergencies. In the future, mobile phones may have a warning label that says they are bad for your health. So for now, it’s wise not to use your mobile phone too often.

According to the passage, cellphones are especially popular with young people because ______.

Read the text below and decide which answer (A,B,C, or D) best fits each space.
The next generation of telephone users will probably laugh (1) _______ we explain how we  used to stand next to a wall in the kitchen to (2) _______ a phone call. Mobile  communications, already highly advanced compared with a decade ago, will completely  change communications in the next few years. (3) _______ there are millions of people using  mobile phones, most people know (4) _______ about the mobile telecommunications industry  and its technology. 
There are three types of mobile phone. These are hand portables, pocket-sized hand portables and transportables. The smallest and most popular are the pocket-sized hand portables. These  work on rechargeable batteries, which allow an (5) _______ of up to 80 minutes'  conversation. Mobiles that are fitted permanently in a vehicle do not (6) _______ on separate  batteries. They require an external aerial on the vehicle. This can mean a stronger signal with  clearer (7) _______. Transportables have a high power capability and can be used (8)  _______ anywhere. They come with powerful battery packs for longer, continuous use and  may also be put (9) _______ a vehicle, using its electrics. They (10) _______ to be bulkier  than hand portables. 

Câu 7....................

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.

The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. In the 1960s, scientists discovered byproducts of the pesticide DDT in the birds' eggs, which caused them to be too soft to survive. The use of the pesticide had been banned in the United States, but the falcons were eating migratory birds from other places where DDT was still used. In order to increase the survival rate, scientists were raising the birds in laboratories and then releasing them into mountainous areas. This practice achieved only moderate success, however, because many of the birds raised in captivity could not survive in the wild.

There is now, however, a new alternative to releases in the wild. A falcon that has been given the name Scarlett chose to make her home on a ledge of the 33rd floor of a Baltimore, Maryland, office building rather than in the wild, and, to the surprise of the scientists, she has managed to live quite well in the city. Following this example, programs have been initiated that release birds like Scarlett into cities rather than into their natural wild habitat. These urban releases are becoming a common way to strengthen the species. Urban homes have several benefits for the birds that wild spots do not. First, there is an abundance of pigeons and small birds as food sources. The peregrine in the city is also protected from its main predator, the great horned owl. Urban release programs have been very successful in reestablishing the peregrine falcons along the East Coast. Though they are still an endangered species, their numbers increased from about 60 nesting pairs in 1975 to about 700 pairs in 1992. In another decade the species may flourish again, this time without human help.

In line 3, the word "banned" could be best replaced by ____________.

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 36 to 42.
A study was set up to examine the old marriage advice about whether it's more important to be happy or to be right. Couples therapists sometimes suggest that in an attempt to avoid constant arguments, spouses weigh up whether pressing the point is worth the misery of marital discord. The researchers from the University of Auckland noticed that many of their patients were adding stress to their lives by insisting on being right, even when it worked against their well-being.
The researchers then found a couple who were willing to record their quality of life on a scale of 1 to 10. They told the man, who wanted to be happy more than right, about the purpose of the study and asked him to agree with every opinion and request his wife had without complaint, even when he profoundly didn't agree. The wife was not informed of the purpose of the study and just asked to record her quality of life.
Things went rapidly downhill for the couple. The man's quality-of-life scores fell, from 7 to 3, over the course of the experiment. The wife's scores rose modestly, from 8 to 8.5, before she became hostile to the idea of recording the scores. Rather than creating harmony, the husband's agreeableness led to the wife becoming increasingly critical of what he did and said (in the husband's opinion). After 12 days he broke down, and the study was called off because of severe adverse outcomes."
The researchers concluded, shockingly, that humans need to be right and acknowledged as right, at least some of the time, to be happy. They also noted this was further proof that if given too much power, humans tend to "assume the alpha position and, as with chimpanzees, they become very aggressive and dangerous." It is often said that there can be no peace without justice, and that's true of domestic sphere.
Obviously the results are to be taken with extreme caution, since this was just one couple with who-knows-what underlying issues beforehand. But the study's chief author, Dr. Bruce Arroll, maintains that the question of happiness vs. rightness, theoretically, could be settled by scientific inquiry with a wider sample. "This would include a randomized controlled trial,” he says. "However, we would be reluctant to do the definitive study because of the concern about divorce."

The word "They" in paragraph 4 refers to _______.

Read the text below and decide which answer (A,B,C, or D) best fits each space.
The next generation of telephone users will probably laugh (1) _______ we explain how we  used to stand next to a wall in the kitchen to (2) _______ a phone call. Mobile  communications, already highly advanced compared with a decade ago, will completely  change communications in the next few years. (3) _______ there are millions of people using  mobile phones, most people know (4) _______ about the mobile telecommunications industry  and its technology. 
There are three types of mobile phone. These are hand portables, pocket-sized hand portables and transportables. The smallest and most popular are the pocket-sized hand portables. These  work on rechargeable batteries, which allow an (5) _______ of up to 80 minutes'  conversation. Mobiles that are fitted permanently in a vehicle do not (6) _______ on separate  batteries. They require an external aerial on the vehicle. This can mean a stronger signal with  clearer (7) _______. Transportables have a high power capability and can be used (8)  _______ anywhere. They come with powerful battery packs for longer, continuous use and  may also be put (9) _______ a vehicle, using its electrics. They (10) _______ to be bulkier  than hand portables. 

Câu 2......................