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

Coincident with concerns about the accelerating loss of species and habitats has been a growing appreciation of the importance of biological diversity, the number of species in a particular ecosystem, to the health of the Earth and human well-being. Much has been written about the diversity of terrestrial organisms, particularly the exceptionally rich life associated tropical rain-forest habitats. Relatively little has been said, however, about diversity of life in the sea even though coral reef systems are comparable to rain forests in terms of richness of life.

 An alien exploring Earth would probably give priority to the planet's dominants - most distinctive feature - the ocean. Humans have a bias toward land that sometimes get in the way of truly examining global issues. Seen from far away, it is easy to realize landmasses occupy only one-third of the Earth’s surface. Given that two thirds of the Earth's surface is water and that marine life lives at all levels of the ocean, the total three-dimensional living space of the ocean is perhaps 100 times greater than that of land and contains more than 90 percent of all life on Earth even though the ocean has fewer distinct species.

 The fact that half of the known species are thought to inhabit the world's rain forests doesn't seem surprising, considering the huge numbers of insects that comprise the bulk of the species. One scientist found many different species of ants in just one tree from a rain forest. While every species is different from every other species, their genetic makeup constrains them to be insects and to share similar characteristics with 750,000 species of insects. If basic, broad categories such as phyla and classes are given more emphasis than differentiating between species, then the greatest diversity of life is unquestionably by sea. Nearly every major type of plant and animal has some presentation there.

 To appreciate fully the diversity and abundance of life in the sea, it helps to think small. Every spoonful of ocean water life, on the order of 100 to 100,000 bacteria cells plus assorted microscopic plants and animals, including larvae of organisms ranging from sponges and corals to starfish and clams and much more.

The author argues that there is more diversity of life in the sea than in the rain forests because

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (1)______ a foreign language.

The site (2)______ that a foreign English teacher can earn between 1,200-2,200 USD a month in Vietnam, where the average annual income in 2016 was just 2,200 USD. They can (3)______ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang. Candidates only need to hold a bachelor’s (4)______ and a TEFL (Teaching English as a Foreign Language) certificate.

English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)______. Foreign language centers have been thriving here, with students as young as three years old.

Điền vào ô 5.

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (1)______ a foreign language.

The site (2)______ that a foreign English teacher can earn between 1,200-2,200 USD a month in Vietnam, where the average annual income in 2016 was just 2,200 USD. They can (3)______ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang. Candidates only need to hold a bachelor’s (4)______ and a TEFL (Teaching English as a Foreign Language) certificate.

English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)______. Foreign language centers have been thriving here, with students as young as three years old.

Điền vào ô 1.

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (1)______ a foreign language.

The site (2)______ that a foreign English teacher can earn between 1,200-2,200 USD a month in Vietnam, where the average annual income in 2016 was just 2,200 USD. They can (3)______ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang. Candidates only need to hold a bachelor’s (4)______ and a TEFL (Teaching English as a Foreign Language) certificate.

English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)______. Foreign language centers have been thriving here, with students as young as three years old.

Điền vào ô 2.

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (1)______ a foreign language.

The site (2)______ that a foreign English teacher can earn between 1,200-2,200 USD a month in Vietnam, where the average annual income in 2016 was just 2,200 USD. They can (3)______ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang. Candidates only need to hold a bachelor’s (4)______ and a TEFL (Teaching English as a Foreign Language) certificate.

English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)______. Foreign language centers have been thriving here, with students as young as three years old.

Điền vào ô 3.

We intend to _____ with the old system as soon as we have developed a better one.

Read the following pasage and decide which answer (A, B, C or D) best fits each space from 1 to 5.

With job vacancies available all year round offering high salaries, Vietnam has been ranked the second best place in the world to teach English by TEFL Exchange, a community for teachers of English (1)______ a foreign language.

The site (2)______ that a foreign English teacher can earn between 1,200-2,200 USD a month in Vietnam, where the average annual income in 2016 was just 2,200 USD. They can (3)______ a job any time of year and the best places to do so are the country’s three largest cities: Hanoi, Ho Chi Minh City and Da Nang. Candidates only need to hold a bachelor’s (4)______ and a TEFL (Teaching English as a Foreign Language) certificate.

English is an obligatory subject from sixth grade across Vietnam, but in large cities, many primary schools demand high (5)______. Foreign language centers have been thriving here, with students as young as three years old.

Điền vào ô 4.

By half past ten tomorrow morning I _______ along the motorway.

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

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

If you have some sufficient knowledge of English, you can make yourself understand almost everywhere.

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.

She is intelligent. She can sing very well.

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

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as the context changes. These trails incorporate no directional information and may be followed by other ants in either direction.

Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space.

The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

What does the passage mainly discuss?

______ through a telescope, Venus appears to go through changes in size and shape.

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 the 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

 The leader failed to explain the cause of the problem. He did not offer any solutions.

Pumpkin seeds, ______ protein and iron, are a popular snack.