Câu 1:
A is a set of multiples of 12 less than 12. How many elements does the set A have?
Answer: The set A has  element(s)

Câu 2:
Find the remainder when  is divided by 9.
Answer: The remainder is 

Câu 3:
Find the remainder of  when it is divided by 3.
Answer: The remainder is 

Câu 4:
A is the set of factor of 12 more than 6. How many elements does the set A have?
Answer: The set A has  element(s)

Câu 5:
Find the natural number  so that the product of  and 5 is a prime number.
Answer: 

Câu 6:
Given that . How many divisors does the number A have?
Answer: The number A has  divisors.

Câu 7:
Given that . How many divisors does the number A have?
Answer: The number A has  divisors.

Câu 8:
How many prime numbers less than 10 are there?
Answer: There are  numbers. 

Câu 9:
Find the greatest 2-digit number that has 12 divisors.
Answer: It is 

Câu 10:
Among all natural number pairs  satisfy , one pair has the greatest product. What is this product?
Answer: The greatest product is 

1. I live __ 24B Dinh Tien Hoang Street. (in/ on / to /at )

2. They will ____ badminton next Sunday ( play / to play / playing / plays )

3. Which is the ____ apartmant ? ( best / better / most / more )

4. Her date of birth is____ November 4^th ( at/ on / in / of )

5. Tam enjoys____ soccer ( play / plays / to play / playing )

6. Would you like ___ badminton ( play / playing / plays / to play / )

7. Talking is ___ common way of relaxing ( more / most / the most / the more )

8. The summer vacation _____ for almost three months ( long / lost / is / are )

9. My sister loves ____ stamps. ( collect / to collect / collects / collecting )

10. Mr. Tuấn has ____ days off than Mr.John ( more / the most / fewer / less )

11. His ideas are different ____ mine ( with / of from / at )

12. Student have two______ each day ( 20-minute breaks / 20-minutes break / 20- minute break )

Read the text below and complete it with the verbs in the box. Use “used to” or the present simple (e.g. he lives, they live, ect.)

The lives of Inuit people of North America have changed a lot in 50 years. First, their name: people (0) used to call them Eskimos, but now they are called Inuits, which means “the people”. They (1) __________ in igloos in the winter but today, many of them live in houses in small towns. They (2) __________ seals – they ate the meat and made clothes from fur. Many of the people still (3) __________ seal-skin clothes today because they are very warm. Remember, the weather is extremely cold for many months of the year. To move over the snow, they (4) __________ special snowshoes on their feet, but today many Inuits (5) __________ snowmobiles. These machines can travel long distances in a short time. In the past it (6) __________ them days or weeks to travel the same distance. Inuit children never (7) __________ to school – they learnt everything from their parents. But now, like all North Americans, they (8) __________ about 10 years of school education. Life is not as hard as it (9) __________, but many of the older Inuits (10) __________ town life and want to go back to the old days.

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

There is a common expression in the English language referring to a blue moon. When people say that something happens “only once in a blue moon,” they mean that it happens only very rarely, once in a great while. This expression has been around for at least a century and a half; there are references to this expression that date from the second half of the nineteenth century. (5) The expression “a blue moon” has come to refer to the second full moon occurring in any given calendar month. A second full moon is not called a blue moon because it is particularly blue or is any different in hue from the first full moon of the month. Instead, it is called a blue moon because it is so rare. The moon needs a little more than 29 days to complete the cycle from full moon to full moon. Because every month except February has more than 29 days, every month will have at least one full moon (except February, which will have a full moon unless there is a full moon at the very end of January and another full moon at the very beginning of March). It is on the occasion when a given calendar month has a second full moon that a blue moon occurs. This does not happen very often, only three or four times in a decade. The blue moons of today are called blue moons because of their rarity and not because of their color; however, the expression “blue moon” may have come into existence in reference to unusual circumstances in which the moon actually appeared blue. Certain natural phenomena of gigantic proportions can actually change the appearance of the moon from Earth. The eruption of the Krakatao volcano in 1883 left dust particles in the atmosphere, which clouded the sun and gave the moon a bluish tint. This particular occurrence of the blue moon may have given rise to the expression that we use today. Another example occurred more than a century later. When Mount Pinatubo erupted in the Philippines in 1991, the moon again took on a blue tint.

Which of the following might be the date of a “blue moon”?

A. January 1

B. February 28

C. April 15

D. December 31

put he following nto the passive
1. They have sold their car to pay their debt
2. People have developed many different paper products
3. Wastes from chemical factories have caused a lot of pollution
4. They have just given the children some gifts
5. People have used the ballpoint pens for many years
6. We haven't finished our homework yet
7. they haven't collected the rubish
8. he hasn't written novels for ages
9. we haven't used these rooms for a long time
10. Lan hasn't visited her grandparents since last year
11. have terrorists attacked many cities in the world for months?
12. Has anyone shown you the new machine?
13. Has the author written a special edition for children?
14. Have thay chaned the date of the meeting?
15. Have the two countries established friendly relations?
16. He asked me many difficult question
17. She advised us to reuse milk bottles
18. They made the fire in the traditional way
19. He finished his exercises on time
20. This boy broke my window yesterday
21. The lawyer gave him the details of his uncle's will

fill CHEMICALS-COLLECTED-FLATTENED-FROM- HARDEN-KNOWN-LATER-PRODUCT

Rubber is one of the most useful substances (1).........to man .It can be found in many things around us, like car tires and chewing gum.Rubber is made (2)...........a milky liquid called latex. latex is obtained from rubber trees.

After the latex has been (3)........and the dirt removed, it is poured into large tanks and left to(4)..............When the latex is hardended, it is dried and sent to factories.

At the factories, the rubber is (5)..........into thin sheets and special (6).....are added to it. The sheets of rubber are (7)......sent to other factories which manufacture rubber (8)................

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 33 to 38.

Sylvia Earle, a marine botanist and one of the foremost deep-sea explorers, has spent over 6,000 hours, more than seven months, underwater. From her earliest years, Earle had an affinity for marine life, and she took her first plunge into the open sea as a teenager. In the years since then she has taken part in a number of landmark underwater projects, from exploratory expeditions around the world to her celebrated “Jim dive” in 1978, which was the deepest solo dive ever made without cable connecting the diver to a support vessel at the surface of the sea.

Clothed in a Jim suit, a futuristic suit of plastic and metal armor, which was secured to a manned submarine, Sylvia Earle plunged vertically into the Pacific Ocean, at times at the speed of 100 feet per minute. On reaching the ocean floor, she was released from the submarine and from that point her only connection to the sub was an 18-foot tether. For the next 2½ hours, Earle roamed the seabed taking notes, collecting 15 specimens, and planting a U.S. flag. Consumed by a desire to descend deeper still, in 1981 she became involved in the design and manufacture of 20 deep-sea submersibles, one of which took her to a depth of 3,000 feet. This did not end Sylvia Earle’s accomplishments.

The main purpose of this passage is _______. 

A. to explore the botany of ocean floor 

B. to present a short biography of Sylvia Earle 

C. to provide an introduction to oceanography 

D. to show the historical importance of the Jim dive 

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 33 to 38.

Sylvia Earle, a marine botanist and one of the foremost deep-sea explorers, has spent over 6,000 hours, more than seven months, underwater. From her earliest years, Earle had an affinity for marine life, and she took her first plunge into the open sea as a teenager. In the years since then she has taken part in a number of landmark underwater projects, from exploratory expeditions around the world to her celebrated “Jim dive” in 1978, which was the deepest solo dive ever made without cable connecting the diver to a support vessel at the surface of the sea.

Clothed in a Jim suit, a futuristic suit of plastic and metal armor, which was secured to a manned submarine, Sylvia Earle plunged vertically into the Pacific Ocean, at times at the speed of 100 feet per minute. On reaching the ocean floor, she was released from the submarine and from that point her only connection to the sub was an 18-foot tether. For the next 2½ hours, Earle roamed the seabed taking notes, collecting 15 specimens, and planting a U.S. flag. Consumed by a desire to descend deeper still, in 1981 she became involved in the design and manufacture of 20 deep-sea submersibles, one of which took her to a depth of 3,000 feet. This did not end Sylvia Earle’s accomplishments. 

The author’s opinion of Sylvia Earle is _______. 

A. critical 

B. supportive 

C. ambivalent 

D. disrespectful