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 following questions

The observation of the skies has played a special part in the lives and cultures of peoples since the earliest of times. Evidence obtained from a site known as the Hole in the Rock, in Papago Park in Phoenix, Arizona, indicates that it might have been used as an observatory by a prehistoric people known as the Hohokam.

The physical attributes of the site allow its use as a natural calendar/clock. The "hole" at Hole in the Rock is formed by two large overhanging rocks coming together at a point, creating a shelter with an opening large enough for several persons to pass through. The northeast-facing overhang has a smaller opening in its roof. It is this smaller hole that produces the attributes that may have been used as a calendar/clock.

Because of its location in the shelter's roof, a beam of sunlight can pass through this second hole and cast a spot onto the shelter's wall and floor. This spot of light travels from west to east as the sun moves across the sky. It also moves from north to south and back again as the Earth travels around the Sun. the west-to-east movement could have been used to establish a daily clock, much like a sundial, while the north-to-south movement could have been used to establish a seasonal calendar.

The spot first appears and starts down the surface of the wall of the shelter at different times of the morning depending on the time of the year. The spot grows in size from its first appearance until its maximum size is achieved roughly at midday. It then continues its downward movement until it reaches a point where it jumps to the floor of the shelter. As the Sun continues to move to the west, the spot continues to move across the shelter floor and down the butte, or hill, toward a group of small boulders. If a person is seated on a certain one of these rocks as the spot reaches it, the Sun can be viewed through the calendar hole. This occurs at different times in the afternoon depending on the time of year.

The word its refers to __________.

A. roof                

B. hole                  

C. beam                

D. spot

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

My manager wanted to know that whether I was taking much money with me to France.

A. wanted to know

B. that 

C. I was taking

D. with me

Để thu được kim loại Cu từ dung dịch CuSO₄ theo phương pháp thủy luyện, có thể dùng kim loại nào sau đây?

A. Ca

B. Na

C. Ag

D. Fe

Read the following passage and mark the letter A, B, C or B on your answer sheet to indicate the correct answer to each of the questions from 30 to 34.

  If parents bring up a child with the sole aim of turning the child into a genius, they will cause a disaster. According to several leading educational psychologists, this is one of the biggest mistakes which ambitious parents make. Generally, the child will be only too aware of what his parents expect, and will fail. Unrealistic parental expectations can cause great damage to children.

  However, if parents are not too unrealistic about what they expect their children to do, but are ambitious in a sensible way, the child may succeed in doing very well — especially if the parents are very supportive of their child. Michael Collins is very lucky. He is crazy about music, and his parents help him a lot by taking him to concerts and arranging private piano and violin lessons for him. They even drive him 50 kilometers twice a week for violin lessons. Michael's mother knows very little about music, but his father plays the trumpet in a large orchestra. However, he never makes Michael enter music competitions if he is unwilling.

  Winston Smith, Michael's friend, however, is not so lucky. Both his parents are successful musicians, and they set too high a standard for Winston. They want their son to be as successful as they are and so they enter him for every piano competition held. They are very unhappy when he does not win. Winston is always afraid that he will disappoint his parents and now he always seems quiet and unhappy.

Who have criticized the methods of some ambitious parents?

A. Successful musicians.

B. Unrealistic parents.

C. Their children.

D. Educational psychologists

Nguy cơ lớn nhất đối với đa dạng sinh học là

A. Khai thác quá mức một loài có giá trị kinh tế cao.

B. Loài du nhập cạnh tranh hoặc ăn loài bản địa.

C. Sự phá vỡ mối quan hệ dinh dưỡng khi ngày càng có nhiều con mồi bị tuyệt chủng.

D. Biến đổi, phân mảnh và phá hủy nơi ở.

Cho các phát biểu sau:

(a) Glucozơ và fructozơ đều tồn tại chủ yếu ở dạng vòng.

(b) Saccarozơ có khả năng tham gia phản ứng tráng bạc.

(c) Glucozơ thuộc loại monosaccarit.

(d) Glucozơ là chất rắn kết tinh, dễ tan trong nước.

Số phát biểu đúng là

A. 2.

B. 1.

C. 3.

D. 4.