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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 1 to 5.

YOU ARE WHAT YOU EAT

Would you imagine that what you eat could affect how youthful you look? According to one scientific theory, our bodies start aging due to oxidation (1)______ is caused by certain oxygen-containing molecules called free radicals. They damage cells, and as we get older, our repair mechanisms become weaken, resulting in signs of aging, such as wrinkles. (2)______ these free radicals are produced naturally, certain foods can increase their levels.
To maintain youthfulness, not only should we avoid foods that could increase free radicals, but we should also (3)______ foods rich in vitamins and micronutrients. For example, vitamins like A and E, found in (4)______ dark-coloured vegetables such as carrots, seaweed, spinach, and squash, are especially good for fighting off the harmful effects of free radical production. Green tea, recently, is well known for its youth promoting (5)______ properties, and we know more now about the beneficial properties of foods such as olive oil and sesame oil. Youwill look more vibrant and feel better when applied directly to the skin as well as when they are included in thediet. This will help you stay young and healthy from the inside out.

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSET in meaning to the underlined words in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

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 18 to 24.
Willis Carrier designed the first air-conditioning unit in 1902, just a year after graduating from Cornell University. At a Brooklyn printing plant, fluctuations in heat and moisture were causing the size of the printing paper to keep changing slightly, making it hard to align different colors. Carrier's invention made it possible to control temperature and humidity levels and so align the colors. The invention also allowed industries such as film, processed food, textiles, and pharmaceuticals to improve the quality of their products.
In 1914, the first air-conditioning device was installed in a private house. However, its size, similar to that of an early computer, meant it took up too much space to come into widespread use, and later models, such as the Weathermaker, which Carrier brought out in the 1920s, cost too much for most people. Cooling for human comfort, rather than industrial need, really took off when three air conditioners were installed in a department store in Detroit, Michigan. People crowded into the shop to experience the new invention. The fashion spread from department stores to cinemas.
To start with, money-conscious employers regarded air conditioning as a luxury. They considered that if they were paying people to work, they should not be paying for them to be comfortable as well. So in the 1940s and 1950s, the air-conditioning manufacturers started putting out a different message about their product.
According to their research, installing air conditioning increased productivity amongst employees. They found that typists increased their output by 24% when transferred from a regular office to a cooled one. Another study into office working conditions, which was carried out in the late 1950s, showed that the majority of companies cited air conditioning as the single most important contributor to efficiency in offices.
However, air conditioning has its critics. Jed Brown, an environmentalist, complains that air conditioning is a factor in global warming. Unfortunately, he adds, because air conditioning leads to higher temperatures, people have to use it even more. However, he admits that it provides a healthier environment for many people in the heat of summer.

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.

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 29 to 33.
For wild animals, there is only one rule for survival: eat or be eaten. To survive in this difficult world, many animals have developed interesting techniques. Some animals make loud noises to scare off their enemies. Others give off a strange and unpleasant smell. The most common way for animals to avoid being seen is to use camouflage to blend in with their environment.
Blending in with the environment allows animals to either hide from animals that would want to eat them or sneak up on animals they would like to eat without being seen. Male birds are brightly coloured in order to attract mates, but female and baby birds usually have dull brown or grey colours. This makes them difficult for their enemies to see. When they stay very still, they blend in with the tree branches around them. It's a very effective protection method.
Interestingly, tigers use their colouration for a different reason. The tiger's orange and black stripes blend in with the grass and shadows of the jungle. This allows them to creep close enough to their prey without being seen. Once the tiger is within striking range, it can leap from the shadows and attack before its prey has time to escape.
Whether it's blending with the environment to eat or to avoid being eaten, camouflage is a great adaptation. The next time you see an animal with interesting colours, ask yourself why the animal is coloured the way it is. It may serve more than making the animal look beautiful.

Mark the letter A, B, C, or D on your answer sheet to indicate the option that best completes each of the following exchanges.

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.