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 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

The word "their" in line 10 refers to.

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The old and the new in transportation also contrast sharply in Middle East.

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You'd better not place a bet on Stallion. In my opinion, the horse doesn't _____ a chance of winning the race.

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Some people will go any length to lose weight

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The doctor _____ all night with the patients in the hospital

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Having been served dinner, ____________

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 31 to 35.

If you ask anyone who invented television, they will tell you that it was John Logie Baird. While Baird was, of course, extremely important in the history of television, it would be more accurate to see his role as part of a (31) _____ of events which finally led to television as we know it today.

The history of television really begins in 1817 with the discovery by Berzelius, a Swedish chemist, of the chemical selenium. It was found that the amount of electric current that selenium could carry depended on how much light struck it.

This discovery directly led to G. R. Carey, an American inventor, (32) _____ up with the first real television system in 1875. His system used selenium to transmit a picture along wires to a row of light bulbs. This picture was not very clear, however.

Over the next few years, a number of scientists and inventors simplified and improved on Carey's system. It was not until1923 that Baird made the first practical transmission. Once again, the picture was (33) _____ through wires, but it was much clearer than Carey's had been almost fifty years before.

The Second World War (34)  _____the development of television. After the war, television sets began to flood the market, with the first mass TV audience watching the baseball World Series in the USA in 1947. Within a few years, television had captured the (35) _____ of the whole world.

Điền ô số 33

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I must congratulate you. You’ve ____________  a very good job

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____________ the invention of the steam engine, most forms of transport were horse-drawn.

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He can hardly understand this matter because he is too young

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The schoolboy’s excuse wasn’t ____________ at all. Nobody in the classroom believed in the far-fetched story he told

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.

We’d better leave them a note. It’s possible they’ll arrive later

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No sooner ____________ to marry Jack ____________ to have serious doubts.

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For ____________  reason is this meeting being held?

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 43 to 50.

Orchids are unique in having the most highly developed of all blossoms, in which the usual male and female reproductive organs are fused in a single structure called the column. The column is designed so that a single pollination will fertilize hundreds or thousands, and in some cases millions, of seeds, so microscopic and light they are easily carried by the breeze. Surrounding the column are three sepals and three petals, sometimes easily recognizable as such, often distorted into gorgeous, weird, but always functional shapes. The most noticeable of the petals is called the labellum, or lip. It is often dramatically marked as an unmistakable landing strip to attract the specific insect the orchid has chosen as its pollinator.

To lure their pollinators from afar, orchids use appropriately intriguing shapes, colors, and scents. At least 50 different aromatic compounds have been analyzed in the orchid family, each blended to attract one, or at most a few, species of insects or birds. Some orchids even change their scents to interest different insects at different times.

Once the right insect has been attracted, some orchids present all sorts of one-way obstacle courses to make sure it does not leave until pollen has been accurately placed or removed. By such ingenious adaptations to specific pollinators, orchids have avoided the hazards of rampant crossbreeding in the wild, assuring the survival of species as discrete identities. At the same time they have made themselves irresistible to collectors.

The orchid is unique because of_________

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.

Had the committee members considered the alternatives more carefully, they would have realized that the second was better as the first