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 following questions.
          Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.             Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached.             Electrons are negatively charged particles. They are bound to their atoms through electromagnetic attraction. Opposite electrical charges attract one another, so the positive charge of the proton helps to keep the negatively charged electron in orbit around the nucleus of the atom. Electrons are different from neutrons in that they cannot be broken down into smaller particles. They are also far smaller and lighter than neutrons and protons. An electron is about one thousandth of the diameter of a proton and an even smaller fraction of its mass. Electrons circle the protons and neutrons at the center of the atom in orbits. These orbits are often called electron shells. The closer the orbit is to the center of the atom, the lower its energy is. There are seven electron shells, and each higher level can hold more electrons than the previous shell. Electrons naturally seek to occupy the lowest shell possible. So, if there is space in a lower shell, an electron will drop down to occupy that space. At temperatures higher than a few hundred degrees, electrons will gain energy and move to a higher shell, but only momentarily. When the electrons drop back down to their natural shell, they emit light. This is why fires and other very hot objects seem to glow.     Electrons are also primarily responsible for many of the chemical properties of atoms. Since electrons seek to occupy the lowest electron shell possible, they will move from one atom to another if there is a space available in a lower electron shell. For example, if there is an atom with an open space in its third shell, and it comes into contact with an atom with electrons in its fourth shell, the first atom will take one of these electrons to complete its third shell. When this happens, the two atoms will be chemically bonded to form a molecule. Furthermore, atoms sometimes lose electrons in collisions with other atoms. When this happens, the radio of protons and electrons in the atom changes, and therefore, the overall electrical charge of the atom changes as well. These atoms are called isotopes, and they have significantly different chemical properties from their parent atoms.
According to paragraph 3, when does an atom produce light?
A.When it has more electrons than its electron shells can hold.
B.When energy is added to the outermost electron shell.
C.When an electron drops back to its original electron shell.
D.When an electron is transferred from one atom to another.

Choose the best answer A, B, C or D to complete sentences.
Most people seem to be................. of the harmful effects of their diet.
A.aware
B.awareness
C.awared
D.unaware

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 10 to 14.
In the past, technology and progress was very slow. People “invented” farming 12,000 years ago but it took 8,000 years for the idea to go around the world. Then, about 3,500 years ago, people called “potters” used round wheels to turn and make plates. But it took hundreds of years before some clever person thought, if we join two wheels together and make them bigger, we can use them to move things
In the last few centuries, things have begun to move faster. Take a 20th-century invention like the aeroplane, for example. The first aeroplane flight on 17 December 1903 only lasted 12 seconds, and the plane only went 37 metres. It can't have been very exciting to watch, but that flight changed the world. Sixteen years later, the first plane flew across the Atlantic, and only fifty years after that, men walked on the moon. Technology is now changing our world faster and faster. So what will the future bring?
One of the first changes will be the materials we use. Scientists have just invented an amazing new material called grapheme, and soon we will use it to do lots of things. With grapheme batteries in your mobile, it will take a few seconds to charge your phone or download a thousand gigabytes of information! Today, we make most products in factories, but in the future, scientists will invent living materials. Then we won't make things like cars and furniture in factories - we will grow them!
Thirty years ago, people couldn't have imagined social media like Twitter and Facebook. Now we can't live without them. But this is only the start. Right now, scientists are putting microchips in some disabled people's brains, to help them see, hear and communicate better. In the future, we may all use these technologies. We won't need smartphones to use social media or search the internet because the internet will be in our heads!
More people will go into space in the future, too. Space tourism has already begun, and a hundred years from now, there may be many hotels in space. One day, we may get most of our energy from space too. In 1941, the writer Isaac Asimov wrote about a solar power station in space. People laughed at his idea then, but we should have listened to him. Today, many people are trying to develop a space solar power station. After all, the sun always shines above the clouds!
The best title for the article would be
A.Man in space
B.Will computers rule the world?
C.More and more inventions  
D.Progress now and then

When friends insist on ______ expensive gifts, it makes most people uncomfortable. 
A.them to accept 
B.they accepting 
C.their accepting 
D.they accept

Read the following passage, and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each question. 
Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.
In the first form, known as primary cooperation, groups and individuals fuse. The group contains nearly all of each individual’s life. The rewards of the group’s works are shared with each member. There is an interlocking identity of individual, group, and task performed. Means and goals become one, for cooperation itself is valued.
While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modern societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.
In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic; the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals; it breaks when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship.
The word “fuse” is closest in meaning to
A.react
B. unite
C.evolve
D.explore

Nam’s parents were here last week and gave us a present.
A.Nam’s parents, whom were here last week, gave us a present.
B.Nam’s parents, who were here last week, gave us a present.
C.Nam’s parents, whose were here last week, gave us a present.
D.Nam’s parents,that were here last week, gave us a present.

IV- Read the following passage  and mark the letter (A, B, C or D) on your answer sheet to indicate the correct answer to each for  the questions. 
  Aspirin’s origins go back at least as early as 1758 .In that year , Englishman Edward Stone noticed a distinctive bitter flavor in the bark of the willow tree. To Stone , this particular bark seemed to have much in common with “Peruvian Bark ” , which had been used medicinally since the 1640s to bring down fevers and to treat malaria . Stone decided to test the effectiveness of the willow bark. He obtained some , pulverized  it into tiny pieces , and conducted experiments in  its properties . His tests demonstrated that this pulverized willow bark was effective both in reducing high temperatures and in relieving aches and pains .In 1763, Stone presented his findings to the British Royal Society.
  Several , decades later , further studies on the medicinal value of the willow bark were being conducted by two Italian scientists . These chemists , Brugnatelli and Fontana , determined that the active chemical that was responsible for the medicinal  characteristics in the willow bark was the chemical  salicin  , which is the active ingredient of today’s aspirin.
    The name “aspirin”   is the trade name of the drug based on the chemical salicin , properly known as acetylsalicylic  acid . The trade name  “aspirin” was invented for the drug in the 1890s by the Bayer Drug Company in Germany .The first bottles of aspirin actually went on the public just prior to the turn of the century , in 1899. 
 
It can be inferred from the passage that Peruvian Bark _____
A.Caused fevers
B.Was ineffective in treating malaria
C.Was ineffective  to the British Royal Society by  Stone
D.Was in use prior to aspirin

People donated a lot, so the victims of the tsunami are now able to overcome difficulties. 
A.To overcome difficulties, the victims of the tsunami needed people's generous donation.
B.But for people's generous donation, the victims of the tsunami wouldn't be able to overcome difficulties now. 
C. The victims of the tsunami are now able to overcome difficulties but for people's donation.
D.Despite people's generous donation, the victims of the tsunami are facing lots of difficulties.

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 following questions.
These stories of killer bees in the news in recent years have attracted a lot of attention as the bees have made their way from South America to North America. Killer bees are reputed to be extremely aggressive in nature, although experts say that their aggression may have been somewhat inflated. 
The killer bee is a hybrid- or combination- of the very mild European strain of honeybee and the considerably more aggressive African bee, which was created when the African strain was imported into Brazil in 1955. The African bees were brought into Brazil because their aggression was considered an advantage: they were far more productive than their European counterparts in that they spent a higher percentage of their time working and continued working longer in inclement weather than did the European bees. 
These killer bees have been known to attack humans and animals, and some fatalities have occurred. Experts point out, however, that the mixed breed known as the killer bee is actually not at all as aggressive as the pure African bee. They also point out that the attacks have a chemical cause. A killer bee stings only when it has been disturbed; it is not aggressive by nature. However, after a disturbed bee stings and flies away; it leaves its stinger embedded in the victim. In the viscera attached to the embedded stinger is the chemical isoamyl acetate, which has an odor that attracts other bees. As other bees approach the victim of the original sting, the victim tends to panic, thus disturbing other bees and causing them to sting. The new stings create more of the chemical isoamylacetate which attracts more bees and increases the panic level of the victim. Killer bees tend to travel in large clusters or swarms and thus respond in large numbers to the production of isoamyl acetate.
It is stated in the passage that killer bees
A.are more deadly than African bees. 
B.never attack animals.
C.always attack African bees.    
D.are less aggressive than African bees.

How many times are children who are older than 10 required to go to school weekly?
 
A.Three                        
B.No time           
C.Once or twice   
D.Four