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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.
Nylon, a synthetic done from a combination of water, air and a by–product of coal, was first introduced in 1938.
A.done
B.combination
C.of coal
D.introduced
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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 answer to each of the questions

Before the 1500’s, the western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present – day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next.
The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. For good measure, during the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower.
Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance.
Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried and shelled, with some of the maize slated for immediate consumption and the rest stored in animal – skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for alter use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompany hunger.
The woman planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seeds from the best of the year’s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older men.
Source (TOEFL reading)
What is the main topic of the passage ?
A.The problems encountered by farmers specializing in growing once crop
B.The agricultural activities of a North American Society
C.Various ways corn can be used.
D.Weather conditions on the western plains.

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

Before the 1500’s, the western plains of North America were dominated by farmers. One group, the Mandans, lived in the upper Missouri River country, primarily in present – day North Dakota. They had large villages of houses built close together. The tight arrangement enabled the Mandans to protect themselves more easily from the attacks of others who might seek to obtain some of the food these highly capable farmers stored from one year to the next.
The women had primary responsibility for the fields. They had to exercise considerable skill to produce the desired results, for their northern location meant fleeting growing seasons. Winter often lingered; autumn could be ushered in by severe frost. For good measure, during the spring and summer, drought, heat, hail, grasshoppers, and other frustrations might await the wary grower.
Under such conditions, Mandan women had to grow maize capable of weathering adversity. They began as early as it appeared feasible to do so in the spring, clearing the land, using fire to clear stubble from the fields and then planting. From this point until the first green corn could be harvested, the crop required labor and vigilance.
Harvesting proceeded in two stages. In August the Mandans picked a smaller amount of the crop before it had matured fully. This green corn was boiled, dried and shelled, with some of the maize slated for immediate consumption and the rest stored in animal – skin bags. Later in the fall, the people picked the rest of the corn. They saved the best of the harvest for seeds or for trade, with the remainder eaten right away or stored for alter use in underground reserves. With appropriate banking of the extra food, the Mandans protected themselves against the disaster of crop failure and accompany hunger.
The woman planted another staple, squash, about the first of June, and harvested it near the time of the green corn harvest. After they picked it, they sliced it, dried it, and strung the slices before they stored them. Once again, they saved the seeds from the best of the year’s crop. The Mandans also grew sunflowers and tobacco; the latter was the particular task of the older men.
Source (TOEFL reading)
The word “enabled” in the first paragraph is closest in meaning to ____________.
A.covered
B.helped
C.reminded
D.isolated

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

School exams are, generally speaking, the first kind of test we take. They find out how much knowledge we have gained. But do they really show how intelligent we are? After all, isn’t it a ___(30)_____ that some people who are very academically successful don’t have any common sense.
Intelligence is the speed ___(31)_____ which we can understand and react to new situations and it is usually tested by logic puzzles. Although scientist are now preparing ___(32)_____ computer technology that will be able to “read” our brains, ___(33)_____ tests are still the most popular ways of measuring intelligence.
A person’s IQ is their intelligence ___(34)_____ it is measured by a special test. The most common IT tests are ___(35)_____ by Mensa, an organization that was found in England in 1946. By 1976, it had 1,300 members in Britain. Today there are 44,000 in Britain and 100,000 _____(36)______, largely in the US.
People taking the tests are judged in ___(37)_____ to an average score of 100, and those who score over 148 are entitled to join Mensa. This works out at 2 percent of the population. Anyone from the age of six can take tests. All the questions are straightforward and most people can answer them if ___(38)_____ enough time. But that’s the problem; the whole ___(39)_____ of the test is that they’re against the clock.
(31)
A.on
B.in
C.at
D.to

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

School exams are, generally speaking, the first kind of test we take. They find out how much knowledge we have gained. But do they really show how intelligent we are? After all, isn’t it a ___(30)_____ that some people who are very academically successful don’t have any common sense.
Intelligence is the speed ___(31)_____ which we can understand and react to new situations and it is usually tested by logic puzzles. Although scientist are now preparing ___(32)_____ computer technology that will be able to “read” our brains, ___(33)_____ tests are still the most popular ways of measuring intelligence.
A person’s IQ is their intelligence ___(34)_____ it is measured by a special test. The most common IT tests are ___(35)_____ by Mensa, an organization that was found in England in 1946. By 1976, it had 1,300 members in Britain. Today there are 44,000 in Britain and 100,000 _____(36)______, largely in the US.
People taking the tests are judged in ___(37)_____ to an average score of 100, and those who score over 148 are entitled to join Mensa. This works out at 2 percent of the population. Anyone from the age of six can take tests. All the questions are straightforward and most people can answer them if ___(38)_____ enough time. But that’s the problem; the whole ___(39)_____ of the test is that they’re against the clock.
(32)
A.forward
B.ahead
C.upper
D.advanced

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

School exams are, generally speaking, the first kind of test we take. They find out how much knowledge we have gained. But do they really show how intelligent we are? After all, isn’t it a ___(30)_____ that some people who are very academically successful don’t have any common sense.
Intelligence is the speed ___(31)_____ which we can understand and react to new situations and it is usually tested by logic puzzles. Although scientist are now preparing ___(32)_____ computer technology that will be able to “read” our brains, ___(33)_____ tests are still the most popular ways of measuring intelligence.
A person’s IQ is their intelligence ___(34)_____ it is measured by a special test. The most common IT tests are ___(35)_____ by Mensa, an organization that was found in England in 1946. By 1976, it had 1,300 members in Britain. Today there are 44,000 in Britain and 100,000 _____(36)______, largely in the US.
People taking the tests are judged in ___(37)_____ to an average score of 100, and those who score over 148 are entitled to join Mensa. This works out at 2 percent of the population. Anyone from the age of six can take tests. All the questions are straightforward and most people can answer them if ___(38)_____ enough time. But that’s the problem; the whole ___(39)_____ of the test is that they’re against the clock.
(33)
A.now and then
B.at this age
C.at the time
D.for the present

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase for each of the blanks.

School exams are, generally speaking, the first kind of test we take. They find out how much knowledge we have gained. But do they really show how intelligent we are? After all, isn’t it a ___(30)_____ that some people who are very academically successful don’t have any common sense.
Intelligence is the speed ___(31)_____ which we can understand and react to new situations and it is usually tested by logic puzzles. Although scientist are now preparing ___(32)_____ computer technology that will be able to “read” our brains, ___(33)_____ tests are still the most popular ways of measuring intelligence.
A person’s IQ is their intelligence ___(34)_____ it is measured by a special test. The most common IT tests are ___(35)_____ by Mensa, an organization that was found in England in 1946. By 1976, it had 1,300 members in Britain. Today there are 44,000 in Britain and 100,000 _____(36)______, largely in the US.
People taking the tests are judged in ___(37)_____ to an average score of 100, and those who score over 148 are entitled to join Mensa. This works out at 2 percent of the population. Anyone from the age of six can take tests. All the questions are straightforward and most people can answer them if ___(38)_____ enough time. But that’s the problem; the whole ___(39)_____ of the test is that they’re against the clock.
(34)
A.as
B.that
C.so
D.how

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