Choose the best answer:
After the fire, we call the ________ to take the victims to the hospital.

 

Choose the best answer:
visitors/ every year/ This/ has/ more than/ city/ 2000.

Mark the letter A, B, C, or D on your answer sheet to indicate the undelined part that needs correction in each of the following questions:
The cause of tooth decay is acid, which is produced by bacteria in the mouth. The acid removes minerals from tooth enamel, allowing tooth decay to begin; the saliva in your mouth encourages remineralization and neutralizes the acid. The rate at which bacteria in the mouth produce acid depends on the amount of plaque on the teeth, the composition of the microbial flora, and whether the bacteria of the plaque have been "primed" by frequent exposure to sugar. To keep your teeth healthy, a regular dental hygiene program should be followed.
Removing plaque with a toothbrush and dental floss temporarily reduces the numbers of bacteria in the mouth and thus reduces tooth decay. It also makes the surfaces of the teeth more accessible, enabling saliva to neutralize acid and remineralize lesions. If fluoride is present in drinking water when teeth are forming, some fluoride is incorporated into the enamel of the teeth, making them more resistant to attack by acid. Fluoride toothpaste seems to act in another way, by promoting the remineralization of early carious lesions.
In addition to a regular dental hygiene program, a good way to keep your teeth healthy is to reduce your intake of sweet food. The least cavity-causing way to eat sweets is to have them with meals and not between. The number of times you eat sweets rather than the total amount determines how much harmful acid the bacteria in your saliva produce. But the amount of sweets influences the quality of your saliva. Avoid, if you can, sticky sweets that stay in your mouth a long time. Also try to brush and floss your teeth after eating sugary foods. Even rinsing your mouth with water is effective. Whenever possible, eat foods with fiber, such as raw carrot sticks, apples, celery sticks, etc., that scrape off plaque, acting as a toothbrush. Cavities can be greatly reduced if these rules are followed when eating sweets.

What does this passage mainly discuss?

Choose the best answer:
She/ always/ want/ improve/ her English.

She is ____ a spectator.

(451)_____

Choose the best answer:
This site/ famous/ thrilling/ scenery

Find mistakes:
For thousands of years, man has created sweet-smelling substances from wood, herbs and flowers and using them for perfumes or medicine.

The referee’s ______ is the most important in any sport competition.

(406)____

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 human criterion for perfect vision is 20/20 for reading the standard lines on a Snellen eye chart without a hitch. The score is determined by how well you read lines of letters of different sizes from 20 feet away. But being able to read the bottom line on the eye chart does not approximate perfection as far as other species are concerned. Most birds would consider us very visually handicapped. The hawk, for instance, has such sharp eyes that it can spot a dime on the sidewalk while perched on top of the Empire State Building.
It can make fine visual distinctions because it is blessed with one million cones per square millimeter in its retina. And in water, humans are farsighted, while the kingfisher, swooping down to spear fish, can see well in both the air and water because it is endowed with two foveae - areas of the eye, consisting mostly of cones, that provide visual distinctions. One fovea permits the bird, while in the air, to scan the water below with one eye at a time. This is called monocular vision. Once it hits the water, the other fovea joins in, allowing the kingfisher to focus both eyes, like binoculars, on its prey at the same time.
A frog’s vision is distinguished by its ability to perceive things as a constant motion picture. Known as “bug detectors”, a highly developed set of cells in a frog’s eyes responds mainly to moving objects. So, it is said that a frog sitting in a field of dead bugs wouldn’t see them as food and would starve. The bee has a “compound” eye, which is used for navigation. It has 15,000 facets that divide what it sees into a pattern of dots, or mosaic. With this kind of vision, the bee sees the sun only as a single dot, a constant point of reference. Thus, the eye is a superb navigational instrument that constantly measures the angle of its line of flight in relation to the sun. A bee’s eye also gauges flight speed. And if that is not enough to leave our 20/20 “perfect vision” paling into insignificance, the bee is capable of seeing something we can’t - ultraviolet light.
Thus, what humans consider to be “perfect vision” is in fact rather limited when we look at other species. However, there is still much to be said for the human eye. Of all the mammals, only humans and some primates can enjoy the pleasures of color vision.

According to the passage, why might birds and animals consider humans very visually handicapped?

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 :
As printed media begin to lose their dominance as a way to (1)__________ information to the world, electronic media have stepped up and taken their place. Many people no longer read newspapers or magazines in their traditional paper forms, but they still do read. The (2)____________ delivery system is what has happened; many people are reading newspapers or magazines off of their smartphones, tablets, or on their computer screens. Probably the greatest criticism of online newspapers andmmagazines is that there often isn’t very much invested in the stories as they (3)___________. Rather than serious investigative journalism, the main point of many online publications is merely to attract page views (4)____________ the advertisers on those pages must pay a small fee. In the age of information, finding the information (5)__________ learning becomes the hardest task of all.

Choose the letter A, B, C or D to complete the sentences with given words:
The children/ spend/ afternoon/ play/ in the garden.

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Get More with Klein!
Klein Mobile gives you (1)-------! Customers can choose that perfect plan from the wide variety that we offer. Basic calling plans allow customers to choose between unlimited minutes or 200, 400, or 650 minutes per month. These plans include text message service but not Internet service. Premier calling plans, (2)-------, allow customers to use their phones to access e-mail, social networking sites, and more. Though premier plans cost slightly more, they provide enhanced (3) ------- features.

Read the passage below carefully, and then choose the best answer:
Don’t Handle with Care
People always go shopping for the latest and greatest gadgets. Speed, performance, and the latest functions are always key factors before making a purchase. Yet the most important factor of all, which often isn’t considered, is a product’s durability. After all, if a product breaks easily and can’t be repaired, the buyer will have wasted their investment. In other cases, weakly-designed product can cost someone their life. Thankfully, today’s inventors and engineers coming up with some incredible ways to ensure that many products can survive the most difficult situations. One area where durability is absolutely essential is in designing weaponry. In the industry, lapses in quality can lead to death. Designers of military vehicles have recently made great strides in creating some extra tough bulletproof vehicles. Researchers were inspired by the advances made with a similar technology, bulletproof vests. This equipment, which keeps police officers and soldiers protected from gunfire, has been continually upgraded as time has gone on. In order to get tougher, these vests have got lighter, so officers and soldiers can move more freely while working. Beautiful screens, a fast computer processor, and the latest software are probably the biggest concerns for most people shopping for new smartphones. Yet, since most mobiles will be subject to their fair share of bumps and bruises during their life cycle, durability should also be a major concern. A major breakthrough in recent years was the invention of Gorilla Glass. This technology not only prevents devices from breaking when dropped on hard surfaces, but it also makes them scratch-resistant as well. Gorilla Glass screens are given molten alkaline salt baths that produce a hard, compressed layer at the surface. Before a screen can crack, it will have to penetrate this rugged surface, which takes a large degree of force. Recently, another new technique called electrospinning was developed that could make future products even tougher to break. The process involves applying high voltage to a polymer to create a strand of nanofiber. Products designed with the material will be able to absorb more energy without breaking. Researchers are aiming to lighten up aircraft and potentially decrease the damage planes suffer in crashes. Hopefully, these advances are just the beginning. Although science has come a long way in helping manufacturers to create more durable products, the next century should surely bring some even more incredible improvements.
4. The word “it” in paragraph 3 refers to ________

Choose the best answer:
What _____ of learning English do you find most difficult? Is it grammar rules or speaking?

To preserve that _____, it was necessary to preserve the people that had created it.

(475)______

Choose the best answer:
Columbus............America more then 400 years ago.

Community Colleges, institutions of higher (1) _______ offering two-year programs of general study or technical or vocational training. Many (2) _______ receive the first two years (freshman and sophomore years) of postsecondary education at community colleges (3) _______ pursuing a bachelor's degree at a four-year institution. Community colleges (4) _______ a variety of programs and degrees, (5) _______ certificate programs that require less than two years of work in a specific area of study; terminal associate degrees in professional and technical programs; and associate degrees that may be transferred toward the completion of a bachelor’s degree.

(25)_______

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 :
Fossil fuels are used to generate the majority of the world’s energy, and they come in different forms. For example, coal may be burned in a power (1)_________ to generate electricity, but gasoline is burned in a car’s engine to make it run. Neither of these two sources is considered green energy because they produce a lot of pollution when they are burned. In addition, they come from a source that is inevitably going to (2)__________. Green energy can be defined as any energy source that is to some degree non­polluting. When it is called (3)__________, this means that a person can replace the same amount of energy that was consumed by that person (4)__________ that person’s lifetime. Since it took millions and millions of years to create the fossil fuels that we now burn, we know that they cannot be replaced by us. Wind power and solar power, 5)__________ harnessed properly, are two excellent sources of green energy. Once the necessary parts such as wind turbines to generate wind power and solar panels to create solar power have been produced, only the pollution from the production is left

Singapore has a highly developed market-based economy. Singapore, along with Hong Kong, South Korea and Taiwan, are one of the Four Asian Tigers.

(tìm lỗi sai)
(518)______

Read the reading below carefully, and then complete it with the best option A, B, C or D given below:
Throughout the world there are different ways for people to greet each other. In much of the world, a handshake is the (1) __________ form of welcoming and greeting someone. In many countries around the Mediterranean Sea a (2) ___________ kiss on the cheek is the appropriate way to welcome friends and family. It can be a very (3) __________ surprise if you expect to shake hands and get a kiss or a hug instead. At times, it is difficult to tell what sort of greeting (4) ___________ is followed. People may bow, grab another‟s arm or even slap the other person on the back. In some places people just smile, look at the other‟s face and say nothing. Most people in the world are tolerant of visitors and don‟t mind what travellers do that seems wrong as long as the visitors are (5)__________. A big part of the delightfulness of world travel is experiencing different customs.

Choose the best answer:
Harvard University _________ in 1636.