Read the passage and choose the best answer for each question below.

          By far the most important United States export product in the eighteenth and nineteenth centuries was cotton, favored by the European textile industry over flax or wool because it was easy to process and soft to tile touch. Mechanization of spinning and weaving allowed significant centralization and expansion in the textile industry during

this period, and at the same time the demand for cotton increased dramatically. American producers were able to meet this demand largely because of tile invention of the cotton gin by Eli Whitney in 1793. Cotton could be grown throughout the South, but separating the fiber – or lint – from the seed was a laborious process. Sea island cotton was relatively easy to process by hand, because its fibers were long and seeds were concentrated at the base of the flower, but it demanded a long growing season, available only along the nation's eastern seacoast. Short-staple cotton required a much shorter growing season, but the shortness of the fibers and their mixture with seeds meant that a worker could

hand-process only about one pound per day. Whitney's gin was a hand-powered machine with revolving drums and metal teeth to pull cotton fibers away from seeds. Using the gin, a worker could produce up to 50 pounds of lint a day.   The later development of larger gins, powered by horses, water, or steam, multiplied productivity further.

          The interaction of improved processing and high demand led to the rapid spread of the cultivation of cotton and to a surge in production. It became the main American export, dwarfing all others. In 1802, cotton composed 14 percent of total American exports by value. Cotton had a 36 percent share by 1810 and over a 50 percent share

in 1830. In 1860, 61 percent of the value of American exports was represented by cotton. In contrast, wheat and wheat flour composed only 6 percent of the value of American exports in that year. Clearly, cotton was king in the trade of the young republic. The growing market for cotton and other American agricultural products led to an unprecedented expansion of agricultural settlement, mostly in the eastern half of the United States---west of the Appalachian Mountains and east of the Mississippi River.

All of the following are mentioned in the passage as reasons for the increased demand for cotton EXCEPT 

A. cotton's softness

B. cotton's ease of processing 

C.  a shortage of flax and wool

D. the growth that occurred in the textile industry.

Read the following passage and mark the letter A, B, C or D on you answer sheet to indicate the correct answer to each of the questions

When jazz began to lose its reputation as “low-down” music and to gain well-deserved acclaim among intellectuals, musicians began to feature many instruments previously considered inappropriate for jazz. Whereas before the 1950s, jazz musicians played only eight basic instruments in strict tempo, in this decade they started to improvise on the flute, electric organ, piccolo, accordion, cello, and even bagpipes, with the rhythm section composed for strings or piano. Big bands no longer dominated jazz, and most changes emerged from small combos, such as the Dave Brubeck Quartet and the Gerry Mulligan Quartet. The Gerry Mulligan Quartet proved that a small, modern band could sound complete without a piano; the rhythm section consisted only of a set of drums and a string bass.

Jazz continued to move in new directions during the 1960s. Saxophonist and composer Ornette Coleman led a quartet playing “free” jazz that was atonal. Pianist Cecil Taylor also conducted similar experiments with music, and John Coltrane included melodies from India in his compositions. In the 1970s, musicians blended jazz and rock music into fusion jazz which combined the melodies and the improvisations of jazz with the rhythmic qualities of rock ‘n’ roll, with three or five beats to the bar and in other meter. The form of jazz music was greatly affected by electric instruments and electronic implements to intensify, distort, or amplify their sounds. However, the younger musicians of the time felt compelled to include a steady, swinging rhythm which they saw as a permanent and essential element in great jazz.

The author believes that the developments in jazz described in the passage ______

A. should be seen as precocious

B. should be considered influential

C. appear largely suggestive

D. may be perceived as discrete

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.
The woman accused to shoplift was found not guilty and was acquitted.

A. accused

B. to shoplift 

C. not guilty

D. was acquitted

Trong nhóm nitơ, khi đi từ N đến Bi, điều khẳng định nào dưới đây không đúng

A. Trong các axit có oxi, axit nitric là axit mạnh nhất

B. Khả năng oxi hóa giảm dần do độ âm điện giảm dần

C. Tính phi kim tăng dần, đồng thời tính kim loại giảm dần

D. Tính axit của các oxit giảm dần, đồng thời tính bazơ tăng dần

Khi nói về sự điều hòa lượng đường trong máu, có bao nhiêu phát biểu sau đây đúng?

I. Hooc môn insulin có tác dụng chuyển hóa glucozơ thành glicogen.

II. Glucagon có tác dụng tăng đường huyết bằng cách chuyển hóa glicogen thành glucozơ.

III. Adrenalin không có vai trò trong việc điều hòa nồng độ đường trong máu.

IV. Nếu không có insulin thì sẽ bị bệnh đái tháo đường.

A. 1

B. 3

C. 4

D. 2

she is not only beautiful but also very talent

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 25 to 29. Fill in the appropriate word in question 29

  YOGA

  Yoga is one of the most ancient forms of exercise, originating in India 5000 years ago. Yoga has taken several years to become recognised world-wide, although recently, much more attention has been (25) ______ to it because of the ways in which it can benefit health. Yoga can be practised by anyone, at any age, in any physical condition, depending on physical needs. For example, athletes and dancers can practise it to (26) ______ their energy and to improve stamina; executives to give a much needed (27) ______ to their overworked minds; children to improve their memory and concentration. It's a good idea to (28) ______ with a doctor first if you've suffered from any type of injury. None of the exercises should (29) ______ you any pain, but it's best to start slowly at first. The best time to practise is either in the morning or in the evening. Beginners find it easier in the evening when the body is more supple.

A. cause

B. do

C. make

D. result