Alen là những trạng thái...... (K: khác nhau, G: giống nhau) của cùng một gen, alen này khác alen kia ở...... (M: một cặp nuclêôtit, S: một hoặc một số cặp nuclêôtit) là sản phẩm của hiện tượng...... (B: biến dị tổ hợp, Đ: đột biến gen), sự khác nhau về cấu trúc dẫn đến sự khác nhau về chức năng, mỗi alen quy định một biểu hiện khác nhau của......(C: cùng một loại tính trạng, L: hai loại tính trạng). Những chỗ...... là các cụm từ với các kí hiệu tương ứng lần lượt là: 

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:

The United States has many different types of families. While most American families are traditional, (31) __________ a father, a mother and one or more children, 22 percent of all American families in 1998 were headed by one parent, usually a woman. In a few families in the United States, there are no children. These (32) ___________ couples may believe that they would not make good parents; they may want freedom from responsibilities of childbearing; or, perhaps they (33) ___________ physically able to have children. Other families in the United States have one adult who is a stepparent. A stepmother or stepfather is a person who joins a family by marrying a father or a mother. Americans (34) ___________ and accept these different types of families. In the United States people have right to privacy and Americans do not believe in telling other Americans what type of family group they must belong to. They respect each other’s choices regarding family groups. Families are very important (35) ___________ Americans.  

Question 31:

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:

Last year, thieves broke into a Scottish stately home and stole only one thing: a rhino horn trophy, which at 1.5 meters was the longest in the world. Meanwhile, in China, pharmaceutical factories have been building up (31)______of antiques made from rhino horn, for the sole purpose of smashing them to powder to make the (32)_______ingredient of many of their medicines. And in Zimbabwe, 34 poachers died in 1990 in the search for the black rhino. Recently, conservationists met to (33)_______a campaign to persuade countries where rhino horn is still part of the traditional medicine to switch to substitutes. The biggest threat to the survival of the rhinoceros is the refusal of certain countries to enforce a ban on domestic trading in rhino horn. The rhino horn is included in many doses for disorders raging from fevers to nosebleeds. Horn, like fingernails, is made of keratin and has no proven medicinal (34)_______. Traditional substitutes, such as horn from buffalo or antelope, are regarded as second best. The battle is thought to be winnable. But it may be harder than the battle against the trade in ivory, for there is a (35)_______between the two commodities. Ivory is a luxury; rhino horn, people believe, could save the life of their child.  

Question 34:

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:

Last year, thieves broke into a Scottish stately home and stole only one thing: a rhino horn trophy, which at 1.5 meters was the longest in the world. Meanwhile, in China, pharmaceutical factories have been building up (31)______of antiques made from rhino horn, for the sole purpose of smashing them to powder to make the (32)_______ingredient of many of their medicines. And in Zimbabwe, 34 poachers died in 1990 in the search for the black rhino. Recently, conservationists met to (33)_______a campaign to persuade countries where rhino horn is still part of the traditional medicine to switch to substitutes. The biggest threat to the survival of the rhinoceros is the refusal of certain countries to enforce a ban on domestic trading in rhino horn. The rhino horn is included in many doses for disorders raging from fevers to nosebleeds. Horn, like fingernails, is made of keratin and has no proven medicinal (34)_______. Traditional substitutes, such as horn from buffalo or antelope, are regarded as second best. The battle is thought to be winnable. But it may be harder than the battle against the trade in ivory, for there is a (35)_______between the two commodities. Ivory is a luxury; rhino horn, people believe, could save the life of their child.  

Question 35:

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:

Last year, thieves broke into a Scottish stately home and stole only one thing: a rhino horn trophy, which at 1.5 meters was the longest in the world. Meanwhile, in China, pharmaceutical factories have been building up (31)______of antiques made from rhino horn, for the sole purpose of smashing them to powder to make the (32)_______ingredient of many of their medicines. And in Zimbabwe, 34 poachers died in 1990 in the search for the black rhino. Recently, conservationists met to (33)_______a campaign to persuade countries where rhino horn is still part of the traditional medicine to switch to substitutes. The biggest threat to the survival of the rhinoceros is the refusal of certain countries to enforce a ban on domestic trading in rhino horn. The rhino horn is included in many doses for disorders raging from fevers to nosebleeds. Horn, like fingernails, is made of keratin and has no proven medicinal (34)_______. Traditional substitutes, such as horn from buffalo or antelope, are regarded as second best. The battle is thought to be winnable. But it may be harder than the battle against the trade in ivory, for there is a (35)_______between the two commodities. Ivory is a luxury; rhino horn, people believe, could save the life of their child.  

Question 31:

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:

Last year, thieves broke into a Scottish stately home and stole only one thing: a rhino horn trophy, which at 1.5 meters was the longest in the world. Meanwhile, in China, pharmaceutical factories have been building up (31)______of antiques made from rhino horn, for the sole purpose of smashing them to powder to make the (32)_______ingredient of many of their medicines. And in Zimbabwe, 34 poachers died in 1990 in the search for the black rhino. Recently, conservationists met to (33)_______a campaign to persuade countries where rhino horn is still part of the traditional medicine to switch to substitutes. The biggest threat to the survival of the rhinoceros is the refusal of certain countries to enforce a ban on domestic trading in rhino horn. The rhino horn is included in many doses for disorders raging from fevers to nosebleeds. Horn, like fingernails, is made of keratin and has no proven medicinal (34)_______. Traditional substitutes, such as horn from buffalo or antelope, are regarded as second best. The battle is thought to be winnable. But it may be harder than the battle against the trade in ivory, for there is a (35)_______between the two commodities. Ivory is a luxury; rhino horn, people believe, could save the life of their child.  

Question 32:

Question 32: 

Private school is not controlled by the government and is not supported by taxes or other public funds. A private school differs (31)__________ a public school, which operates with major support from government funds. Private schools are operated by religion groups or by independent organizations. Most private schools operate on a non-profit basis, although a few are run as businesses to make money for their owners. Private schools are (32)__________ chiefly by tuition, grants from their sponsors or contributions. Some private schools also have an invested money whose income is used to fund the school. In most countries, almost all schools were private until the early 1800’s. At that time, many government leaders began to encourage development of public schools to promote national progress by making education widely available to citizens. Today, the (33)__________ of public and private schools differs greatly from one country to another. In many developed countries, private schools offer a general focus on (34)__________ for college, a special focus on science, music or other subject areas; and religious instruction. The Roman Catholic Church is one of the largest sponsors of private schools (35)__________ the world. 

Question 31:

Private school is not controlled by the government and is not supported by taxes or other public funds. A private school differs (31)__________ a public school, which operates with major support from government funds. Private schools are operated by religion groups or by independent organizations. Most private schools operate on a non-profit basis, although a few are run as businesses to make money for their owners. Private schools are (32)__________ chiefly by tuition, grants from their sponsors or contributions. Some private schools also have an invested money whose income is used to fund the school. In most countries, almost all schools were private until the early 1800’s. At that time, many government leaders began to encourage development of public schools to promote national progress by making education widely available to citizens. Today, the (33)__________ of public and private schools differs greatly from one country to another. In many developed countries, private schools offer a general focus on (34)__________ for college, a special focus on science, music or other subject areas; and religious instruction. The Roman Catholic Church is one of the largest sponsors of private schools (35)__________ the world.   

Question 34:

Private school is not controlled by the government and is not supported by taxes or other public funds. A private school differs (31)__________ a public school, which operates with major support from government funds. Private schools are operated by religion groups or by independent organizations. Most private schools operate on a non-profit basis, although a few are run as businesses to make money for their owners. Private schools are (32)__________ chiefly by tuition, grants from their sponsors or contributions. Some private schools also have an invested money whose income is used to fund the school. In most countries, almost all schools were private until the early 1800’s. At that time, many government leaders began to encourage development of public schools to promote national progress by making education widely available to citizens. Today, the (33)__________ of public and private schools differs greatly from one country to another. In many developed countries, private schools offer a general focus on (34)__________ for college, a special focus on science, music or other subject areas; and religious instruction. The Roman Catholic Church is one of the largest sponsors of private schools (35)__________ the world.   

Question 33: 

Private school is not controlled by the government and is not supported by taxes or other public funds. A private school differs (31)__________ a public school, which operates with major support from government funds. Private schools are operated by religion groups or by independent organizations. Most private schools operate on a non-profit basis, although a few are run as businesses to make money for their owners. Private schools are (32)__________ chiefly by tuition, grants from their sponsors or contributions. Some private schools also have an invested money whose income is used to fund the school. In most countries, almost all schools were private until the early 1800’s. At that time, many government leaders began to encourage development of public schools to promote national progress by making education widely available to citizens. Today, the (33)__________ of public and private schools differs greatly from one country to another. In many developed countries, private schools offer a general focus on (34)__________ for college, a special focus on science, music or other subject areas; and religious instruction. The Roman Catholic Church is one of the largest sponsors of private schools (35)__________ the world. 

Question 31: 

A tiny village school is soon to celebrate its 110th birthday - against all expectations. Five years ago it seemed certain to close but parents and other villagers fought the local education authority and raised funds to keep it (31)_______. It is now ending its first term as a school (32)_____ by the village community and the villagers are just proud of their achievement. They were furious when education chiefs tried to make them send the village children to other schools further away because the number of pupils at the village school was too (33)_____. The villagers started a huge campaign to (34) _____ money. They collected enough to hire a teacher and began to help with school cleaning, lunch supervision and lessons. Now the school is doing well and it seems (35)____ it will continue to run in the future.