Find mistakes among A B C and D and correct

Had we known the traffic would be so bad, we did not drive back from work so  early.

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

Two British policemen were (19)_______ to investigate a flying saucer on March 31, 1989, the day before April Fool’s Day. When the policemen arrived at a field in Survey, they saw a small figure wearing a silver space (20)________ walking out of a spacecraft. Immediately the police ran off in the opposite direction. Reports revealed that the alien was in fact a small person, and the flying saucer was a hot air balloon that had been specially built to look (21)________ a UFO by Richard Branson, the 36-year-old chairman of Virgin Records.

Branson had planned to (22) _______ the balloon in London’s Hyde Park on April 1.

However, a wind change had brought him down in a Survey field. The police received a lot of phone calls from terrified motorists as the balloon drifted over the motorway. One lady was so (23)_____ by the incident that she was crying as she was (24)______ the UFO to a radio station.

(19).............

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Mobile phones emit microwave radio emissions. Researchers are questioning whether exposure to these radio waves might (1) _______ to brain cancer. So far, the data are not conclusive. The scientific evidence does not (2) _______ us to say with certainly that mobile phones are categorically (3) _______. On the other hand, current research has not yet (4) _______ clear adverse effect associated with the prolonged use of mobile phones. Numerous studies are now going (5) _______ in various countries. Some of the results are contradictory but others have shown an association between mobile phone use and cancer. (6) _______, these studies are preliminary and the issue needs further, long - term investigation. (7) _______ the scientific data is more definite, it is prudent for people to try not to use mobile phone for long (8) _______ of time. Don't think that hands free phones are any safer either. At the moment, research is in fact showing the (9) _______ and they may be just as dangerous. It is also thought that young people (10) _______ bodies are still growing may be at particular risk

Find mistakes among A B C and D and correct

The more important theorem of all in plane geometry is the Pythagorean Theorem.

Find mistakes among A B C and D and correct

The Medal of Honor is the higher award for military bravery that can be given to any soldier of the United States.

Read the passage carefully and choose the best answer to each question. 
The research of alternative resources of energy has resulted in various directions. Many communities are burning garbage and other biological waste products to produce electricity. Changing waste products into gases or oil is also an efficient way to dispose of waste. Experimental work is being done to make synthetic fuels from coal, or coal tars. But today, that process has proved expensive. Giant windmills have been built to provide a considerable source of electricity. Other experiments in geothermal power are being tested to harness power deep inside the earth.

Some experts are trying to revive hydroelectric power which is derived from streams and rivers. Fifty years ago, hydroelectric power provided one-third of the electricity used in the United States, but today it supplies only four percent. The oceans are another source of energy. Scientists are studying ways to change the energy of ocean currents, tides, and waves into electricity. Experiments are also underway to make use of temperature differences in ocean water to produce energy.

According to the writer, synthetic fuels from coals or coal tars are _____

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

Water pollution happens __________ (6) toxic substances enter water bodies such as lakes, rivers, oceans and so on, getting dissolved in them, lying suspended in the water or depositing on the bed. This degrades the quality of water. Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater, which might end up in our households as contaminated water we use in our daily activities, including drinking.

Water pollution can be __________ (8) in a number of ways, one of the most polluting being city sewage and industrial waste discharge. Indirect sources __________ (9) water pollution include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rain. Soils and groundwater contain __________ (10) residue of human agricultural practices and also improperly disposed of industrial wastes.

Pollutants can be of varying kinds: organic, inorganic, radioactive and so on. In fact, the list of possible water contaminants is just too vast to be listed here.

 Not __________ (7) does this spell disaster for aquatic ecosystems, the pollutants also seep through and reach the groundwater

Complete the passage with the words provided:
You will make the interview process easier for the employer if you prepare relevant information about yourself. Think about how you want to present your (1)________  , experiences, education, work style, skills, and goals. Be prepared to supplement all your answers with examples that support the statements you make. It is also a good idea to review your resume with a critical eye and (2)____             areas that an  employer might see as limitations or want further information. Think about how you can answer difficult' questions (3) ______and positively, while keeping each answer brief. An interview gives the employer a (4)_____ to get to know you. While you do want to market yourself to the employer, answer each question with an honest (5)_______. Never say anything negative about past experiences, employers, or courses and professors. Always think of something positive about an experience and talk about that. You should also be (6)_______ . If you  are  genuinely interested (7) ____ the job, let the interviewer know that. One of the best ways to show you are keen on a job is to demonstrate that you have researched the organization prior to the interview. You can also (8)_____interest by asking questions about the job, the organization, and its services and products. The best way to impress an employer is to ask questions that build upon your interview discussion. This shows you are interested and (9)______close attention to the interviewer. It is a good idea to prepare a few questions in advance, but an insightful comment based on your conversation can make an even stronger statement. At the (10) _____ of an  interview, it is appropriate for you to ask when you may expect to hear; from the employer

Choose the letter A, B, C or D to answer these following questions

National parks are large areas of public land set aside for native plants, animals and the places in which they live. National parks protect places of natural beauty. National park is home to many endemic species. They also protect places important to Aboriginal people, and places that show how people lived in the past.

National parks are actually protected areas. IUCN definition of a protected area: “A clearly defined geographical space, recognized, dedicated and managed, through legal or other effective means, to achieve the long-term conservation of nature with associated ecosystem services and cultural values”.

Conservation of biodiversity (the variety of our native species and the ecosystems they form) is the central purpose of protected areas. High levels of biodiversity keep ecosystems healthy and resilient, which means that they continue providing vital ecosystem services such as nutrient cycling, climate regulation, air and water purification and pollination.

Protecting biodiversity is vital to safeguard our economy; our cultural, spiritual and aesthetic values; and the intrinsic value of species and ecosystems. National parks provide a safe home for native plants and animals. They help keep the air and water clean. National parks give us places to enjoy.

What is the role of high levels of biodiversity?

Complete the passage with the words provided:
GOING ON A DIET
A typical person needs about 1,800 calories per day to stay running.. They keep your organs operating (1)_______ and your brain running. They also keep your body warm. A person gains weight because he or she consumes more calories per day than (2) ________. The only way to lose fat is to reduce the (3) ________ of calories that you consume per day. This is the basic principle (4) ________ going on a diet. Unfortunately, diets don’t work for most people. They do lose weight but then go off the diet and put it back. Building a sensible diet and exercise plan is the key (5) ________ maintaining a consistent weight. You need to figure out how many calories you need in a day and how many you actually (6) ________. The next step is to add exercise (7) ________ you can raise the number of calories you can consume per day. Burning 250 or 500 calories per day can make a big (8) ________. You can ride an exercise bike while you are watching television (9) ________ you can take the stairs instead of the elevator. Find an exercise partner. Exercises can be a lot easier if there is someone to talk to. It’s a good idea to wear firm-fitting clothes if you are (10) ________. Tight clothing acts as a reminder of what you are trying to accomplish

It is estimated that over 99 percent of all species that ever existed have become extinct. What causes extinction? When a species is no longer adapted to a changed environment, it may perish. The exact causes of a species’ death vary from situation to situation. Rapid ecological change may render an environment hostile to a species. For example, temperatures may change and a species may not be adapted. Food resources may be affected by environmental changes, which will then cause problems for a species requiring these resources. Other species may become better adapted to an environment, resulting in competition and, ultimately, in the death of a species.

The fossil record reveals that extinction has occurred throughout the history of Earth. Recent analyses have also revealed that on some occasions many species became extinct at the same time - a mass extinction. One of the best-known examples of mass extinction occurred 65 million years ago with the demise of dinosaurs and many other forms of life. Perhaps the largest mass extinction was the one that occurred 225 million years ago, when approximately 95 percent of all species died. Mass extinctions can be caused by a relatively rapid change in the environment and can be worsened by the close interrelationship of many species. If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of Earth would drop, even affect organisms not living in the oceans. Such a change would probably lead to a mass extinction.
One interesting, and controversial, finding is that extinctions during the past 250 million years have tended to be more intense every 26 million years. The periodic extinction might be due to intersection of the earth’s orbit with a cloud of comets, but this theory is purely speculative. Some researchers have also speculated that extinction may often be random. That is, certain species may be eliminated and others may survive for no particular reason. A species' survival may have nothing to do with its ability or inability to adapt. If so, some of revolutionary history may reflect a sequence of essentially random events.

The word “demise” is closest in meaning to ________.

Complete the passage with the words provided.
The computer has proved to be very (31)_________to our lives. In fact, it can not only do simple (32)_________- add, subtract, multiply or divide - with lightning speed, but also gather a wide range of information for many purposes. They can (33)_________hand-printed letters, play chess, compose music, write plays or even design other computers. In business and industry, the computer keeps track of sales trends and production needs, mails dividend checks, and makes out company payrolls. (34)_________they are taking over some of the tasks that were once accomplished by our brains, computers are not replacing us. Our brain (35)_________more than 10 billion cells and a computer has only a few hundred thousand parts.

31________

Complete the passage with the words provided:
Education is more important today than ever before. It helps people acquire the skills they need for such everyday  (1)_______  as reading a newspaper or managing their money. It also gives them the specialized training they may need to  (2)_______ for a job or career. For example, a person must meet certain educational requirements and obtain a  (3)_______  or certificate before he can practice law or medicine. Many fields, like computer operation or police work,  (4)_______  satisfactory completion of special training courses. Education is also important  (5)_______  it helps people get more out of life. It increases their knowledge and understanding of the world. It helps them acquire the skills that make life more interesting and enjoyable,  (6)_______  the skills needed to participate in a sport, paint a picture, or play a musical  (7)_______ . Such education becomes  (8)_______  important as people gain more and more leisure time. Education also helps people adjust to change. This habit has become necessary because social changes today take place with increasing speed and  (9)_______  the lives of more and more people. Education can help a person understand these changes and provide him  (10)_______  the skills for adjusting to them

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: 

Earth, our beautiful home planet, is the only astronomical object to accommodate life as we know it. Scientists believe Earth was formed approximately 4.5 billion years ago. It is the fifth-largest planet in our solar system. Its equatorial diameter is about 12,074 kilometers. Earth is the third-closest planet to the sun. The distance from Earth to the sun is roughly 149,600,000 kilometers. It takes 365.3 days for Earth to orbit the sun, and 24 hours to rotate on its axis. The surface temperature ranges from -88 to 58°C. Nearly 70 percent of Earth’s surface is covered by ocean, which has an average depth of about 4 kilometers. In 2015 it was estimated that 7.3 billion humans are living on Earth.

In our solar system, ………….. planets are larger than Earth.

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Why is it that many teenagers have the energy to play computer games until late at night but can’t find the energy to get out of bed (1) ________ for school? According to a new report, today’s generation of children are in danger of getting so (2)_______ sleep that they are putting their mental and physical health at (3)_______. Adults can easily survive on seven to eight hours’ sleep a  night, (4)_______teenagers require nine or ten hours. According to medical experts, one in five youngsters (5)________ anything between two and five hours’ sleep a night less than their parents did at their age.
This (6) _____ serious questions about whether lack of sleep is affecting children’s ability to concentrate at school. The connection between sleep deprivation and lapses in memory, impaired reaction time and poor concentration is well (7) _______. Research has shown that losing as little as half an hour’s sleep a night can have profound effects (8) ______how children perform the next day. A good night’s sleep is also crucial for teenagers because it is while they are asleep (9)______ they release a hormone that is essential for their ‘growth spurt’ (the period during teenage years when the body grows at a rapid rate). It’s true that they can, to some (10) ______, catch up on sleep  at weekends, but that won’t help them when they are dropping off to sleep in class on a Friday afternoon

Complete the passage with the words provided:
The latest addiction to trap thousands of people is Internet, which has been (1) … for broken relationships, job losses, financial ruin and even one suicide. Psychologists now recognize Internet Addiction Syndrome (IAS) as a new illness that could (2) ….. serious problems and ruin many lives. Special help groups have been set up to (3) ….. sufferers help and support. IAS is similar to (4) ….. problems like gambling, smoking and drinking : addicts have dreams about Internet; they need to use it first thing in the morning; they (5) … to their partners about how much time they spend online; they (6) …. they could cut down, but are unable to do so . A recent study found that many users spend up to 40 hours a week on the Internet; (7) …. they felt guilty, they became depressed if they were (8) …. to stop using it. Almost anyone can be at risk. Some of the addicts are teenagers who are already hooked on Computer games and who (9) …. it very difficult to resist the games on the Internet. Surprisingly, however, psychologists (10)…. that most victims are middle-aged housewives who have never used a computer before.

Complete the passage with the words provided:
Early writing and Alphabets
When people first began to write, they did not use an alphabet. Instead, they drew small pictures to (01) ______ the objects they were writing about. This was very slow because there was a different picture for (02) ______ word. The Ancient Egyptians had a (03) ______ of picture writing that was (04) ______ hieroglyphics. The meaning of this writing was forgotten for a very long time but in 1799 some scientists (05) ______ a stone near Alexandria, in Egypt. The stone had been there for (06) ______ a thousand years. It had both Greek and hieroglyphics on it and researchers were finally able to understand what the hieroglyphics meant. An alphabet is quite different (07) ______ picture writing. It (08) ______ of letters or symbols that represent a sound and each sound is just part of one word. The Phoenicians, (09) ______ lived about 3,000 years ago, developed the modern alphabets. It was later improved by the Roman’s and this alphabet is now used (10) ______ throughout the world

Complete the passage with the words provided:
CARNIVOROUS PLANTS
All plants rely on nutrients taken from the soil in order to survive. However, in areas where the soil does not contain enough (1)_____ nutrients, some plants have adapted to (2) _____ their diets from another source: living organisms. Though they are few in number, carnivorous plants are (3)_____ fascinating beings that “eat” anything from one-celled organisms to insects in order to survive. They are commonly found in marshlands. Carnivorous plants feature one of several types of “traps” to ensnare prey, which they consume to make up for nutrients that may be missing from the soil. While there are over 400 species of carnivorous plants in the world today, some are more (4)_____ than others. The most well-known of these plants are the snap traps, which include the Venus flytrap. Snap traps are easily identified by their leaves, which are separated into two lobes that have the ability to fold together. Inside the lobes, the surface is covered with tiny hairs that are (5) _____ to movement. When the plant’s prey brushes against the hairs, it triggers a closing mechanism that rapidly brings the two lobes together, trapping the prey (6)_____ inside. The response of the traps is phenomenal (7)_____ speed: the time between triggering the hairs and snapping shut is less than a second. As the prey struggles inside the trap, it only triggers more hairs, causing the leaves to tighten their (8) _____. The plant then secrets liquid chemicals from special glands into the trap to dissolve the prey and absorb all of its nutrients. Besides the Venus flytrap, only one other type of snap trap exists today, (9)_____ to as the waterwheel plant. The two share a common ancestor and differ only in a few ways. For instance, the waterwheel is an aquatic plant, while the flytrap is exclusively terrestrial. In addition, the flytrap feeds primarily on arthropods like spiders, while the waterwheel lives (10)_____ simple invertebrates, like certain types of plankton

Complete the passage with the words provided:
The term civilization basically means the ___1___ of development at which people live together peacefully in communities. Ancient civilization refers specifically to the first ___2___  and stable communities that became the basis for later states, nations, and empires. The study of ancient civilization is concerned with the earliest ___3___  of the much broader subject called ancient history. The ___4___  of ancient history began with the invention of writing in about 3100 BC and lasted for more than 35 centuries. Mankind existed long before the written word, but writing made the keeping of a historical record ___5___. The first ancient societies ___6___  in Mesopotamia and Egypt in the Middle East, in the Indus Valley region of ___7___ are now Pakistan and  India, in the Huang He (Yellow River) valley of China, on the island of Crete in the Aegean Sea, and in Central America. All of these civilizations had certain ___8___  in common. They built cities, invented forms of writing, learned to make pottery and use metals, domesticated animals, and created fairly complex social structures with class systems. ___9___ written records and carved inscriptions, the knowledge about ancient peoples is derived from the work of archaeologists. Most of the significant archaeological ___10___  have been made in the past 200 years. The Sumerian culture of Mesopotamia was discovered in the 1890s, and some of the most important archaeological digs in China were made after the late 1970s

Find mistakes among A B C and D and correct

No decision will be made about future appoint until all suitable candidates had been interviewed

Complete the passage with the words provided:
PROBLEMS OF WATCHING TELEVISION IN BRITAIN
British parents are always complaining that their children spend too much time gluing to the telly and not enough (1)____ other activities like sports and reading. A survey recently carried out on people's viewing habits  (2)____ not disapprove it. It shows that young people in Britain spend on  (3)___ twenty three hours a week in front of the television,  (4)_______ works out at over three hours every day. What is surprising, however, is the fact that the average adult watches even more: an incredible 28 hours a week. We seem to have become a nation of telly addicts. Just about  (5)_______ household in the country has a television and over half have two or more. According  (6)___ the survey, people nowadays don't just watch television sitting in their living room, they watch it in the kitchen and in bed as well. The Education Minister said a  (7)___weeks ago that Britain's pupils should spend more time reading. Unfortunately, parents are not setting a good example: adults do  (8)__ reading than young people. In fact, reading is  (9)___ the bottom of their list of favorite pastimes. They would (10)____ listen to the radio, go to the cinema or hire a video to watch on their television at home.