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.
My sister didn’t leave the house key. As a result, I can’t be cooking lunch now.
A.If my sister have left the house key, I could have been cooking lunch now.
B.If my sister had left the house key, I could have been cooking lunch now.
C.If my sister had left the house key, I could be cooking lunch now.
D.If my sister left the house key, I could be cooking lunch now.

Read the following passage and mark the letter A, B, C, or D on your answer sheer to indicate the correct answer to each of the numbered blanks from 37 to 44.
All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to find their own food. The behavior of feeding of the young is built into the reproductive system. It is a nonselective part of parental care and the defining feature of a mammal, the most important thing that mammals - whether marsupials, platypuses, spiny anteaters, or placental mammals - have in common.
But not all animal parents, even those that tend their offspring to the point of hatching or birth, feed their young. Most egg-guarding fish do not for the simple reason that their young are so much smaller than the parents and eat food that is also much smaller than the food caten by adults. In reptiles, the crocodile mother protects her young after they have hatched and takes them down to the water, where they will find food, but she does not actually feed them. Few insects feed their young after hatching, but some make other arrangement provisioning their cells and nests with caterpillars and spiders that they have paralyzed with their venom and stored in a state of suspended animation so that their larvae might have a supply of fresh food when they hatch.
For animals other than mammals, then, feeding is not intrinsic to parental care. Animals add it to their reproductive strategies to give them an edge in their lifelong quest for descendants. The most vulnerable moment in any animal's life is when it first finds itself completely on its own, when it must forage and fend for itself. Feeding postpones that moment until a young animal has grown to such a size that it is better able to cope.
Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies. Once a species does take the step of feeding its young, the young become totally dependent on the extra effort. If both parents are removed, the young generally do not survive.
The word "shielded" in the last paragraph is closest in meaning to _______ .
A.raised
B.protected
C.hatched
D.valued

Read the following passage and mark the letter A, B, C, or D on your answer sheer to indicate the correct answer to each of the numbered blanks from 37 to 44.
All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to find their own food. The behavior of feeding of the young is built into the reproductive system. It is a nonselective part of parental care and the defining feature of a mammal, the most important thing that mammals - whether marsupials, platypuses, spiny anteaters, or placental mammals - have in common.
But not all animal parents, even those that tend their offspring to the point of hatching or birth, feed their young. Most egg-guarding fish do not for the simple reason that their young are so much smaller than the parents and eat food that is also much smaller than the food caten by adults. In reptiles, the crocodile mother protects her young after they have hatched and takes them down to the water, where they will find food, but she does not actually feed them. Few insects feed their young after hatching, but some make other arrangement provisioning their cells and nests with caterpillars and spiders that they have paralyzed with their venom and stored in a state of suspended animation so that their larvae might have a supply of fresh food when they hatch.
For animals other than mammals, then, feeding is not intrinsic to parental care. Animals add it to their reproductive strategies to give them an edge in their lifelong quest for descendants. The most vulnerable moment in any animal's life is when it first finds itself completely on its own, when it must forage and fend for itself. Feeding postpones that moment until a young animal has grown to such a size that it is better able to cope.
Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies. Once a species does take the step of feeding its young, the young become totally dependent on the extra effort. If both parents are removed, the young generally do not survive.
The word “edge” in the third paragraph is closest in meaning to _______ .
A.opportunity
B.advantage
C.purpose
D.rest

Read the following passage and mark the letter A, B, C, or D on your answer sheer to indicate the correct answer to each of the numbered blanks from 37 to 44.
All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to find their own food. The behavior of feeding of the young is built into the reproductive system. It is a nonselective part of parental care and the defining feature of a mammal, the most important thing that mammals - whether marsupials, platypuses, spiny anteaters, or placental mammals - have in common.
But not all animal parents, even those that tend their offspring to the point of hatching or birth, feed their young. Most egg-guarding fish do not for the simple reason that their young are so much smaller than the parents and eat food that is also much smaller than the food caten by adults. In reptiles, the crocodile mother protects her young after they have hatched and takes them down to the water, where they will find food, but she does not actually feed them. Few insects feed their young after hatching, but some make other arrangement provisioning their cells and nests with caterpillars and spiders that they have paralyzed with their venom and stored in a state of suspended animation so that their larvae might have a supply of fresh food when they hatch.
For animals other than mammals, then, feeding is not intrinsic to parental care. Animals add it to their reproductive strategies to give them an edge in their lifelong quest for descendants. The most vulnerable moment in any animal's life is when it first finds itself completely on its own, when it must forage and fend for itself. Feeding postpones that moment until a young animal has grown to such a size that it is better able to cope.
Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies. Once a species does take the step of feeding its young, the young become totally dependent on the extra effort. If both parents are removed, the young generally do not survive.
The word "provisioning" in the second paragraph is closest in meaning to .
A.supplying
B.preparing
C.building
D.expanding

Read the following passage and mark the letter A, B, C, or D on your answer sheer to indicate the correct answer to each of the numbered blanks from 37 to 44.
All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to find their own food. The behavior of feeding of the young is built into the reproductive system. It is a nonselective part of parental care and the defining feature of a mammal, the most important thing that mammals - whether marsupials, platypuses, spiny anteaters, or placental mammals - have in common.
But not all animal parents, even those that tend their offspring to the point of hatching or birth, feed their young. Most egg-guarding fish do not for the simple reason that their young are so much smaller than the parents and eat food that is also much smaller than the food caten by adults. In reptiles, the crocodile mother protects her young after they have hatched and takes them down to the water, where they will find food, but she does not actually feed them. Few insects feed their young after hatching, but some make other arrangement provisioning their cells and nests with caterpillars and spiders that they have paralyzed with their venom and stored in a state of suspended animation so that their larvae might have a supply of fresh food when they hatch.
For animals other than mammals, then, feeding is not intrinsic to parental care. Animals add it to their reproductive strategies to give them an edge in their lifelong quest for descendants. The most vulnerable moment in any animal's life is when it first finds itself completely on its own, when it must forage and fend for itself. Feeding postpones that moment until a young animal has grown to such a size that it is better able to cope.
Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies. Once a species does take the step of feeding its young, the young become totally dependent on the extra effort. If both parents are removed, the young generally do not survive.
The author lists various animals in the first paragraph to ________ .
A.contrast the feeding habits of different types of mammals
B.describe the process by which mammals came to be defined
C.emphasize the point that every type of mammal feeds its own young
D.explain why a particular feature of mammals is nonselective

Read the following passage and mark the letter A, B, C, or D on your answer sheer to indicate the correct answer to each of the numbered blanks from 37 to 44.
All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to find their own food. The behavior of feeding of the young is built into the reproductive system. It is a nonselective part of parental care and the defining feature of a mammal, the most important thing that mammals - whether marsupials, platypuses, spiny anteaters, or placental mammals - have in common.
But not all animal parents, even those that tend their offspring to the point of hatching or birth, feed their young. Most egg-guarding fish do not for the simple reason that their young are so much smaller than the parents and eat food that is also much smaller than the food caten by adults. In reptiles, the crocodile mother protects her young after they have hatched and takes them down to the water, where they will find food, but she does not actually feed them. Few insects feed their young after hatching, but some make other arrangement provisioning their cells and nests with caterpillars and spiders that they have paralyzed with their venom and stored in a state of suspended animation so that their larvae might have a supply of fresh food when they hatch.
For animals other than mammals, then, feeding is not intrinsic to parental care. Animals add it to their reproductive strategies to give them an edge in their lifelong quest for descendants. The most vulnerable moment in any animal's life is when it first finds itself completely on its own, when it must forage and fend for itself. Feeding postpones that moment until a young animal has grown to such a size that it is better able to cope.
Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies. Once a species does take the step of feeding its young, the young become totally dependent on the extra effort. If both parents are removed, the young generally do not survive.
What does the passage mainly discuss?
A.The care that various animals give to their offspring
B.The difficulties young animals face in obtaining food
C.The methods that mammals use to nurse their young
D.The importance among young mammals of becoming independent

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks.
SETTLING IN OUR UNIVERSITY
The university campus is like one big village where thousands of students live, work and relax surrounded by rolling green fields. It is the centre of the student (7) _______ in all its variety. While it is basically a place for young people, there are a (8) _______ of family flats and children are never far away. People come to live here from all over the world, so members of different cultures and speakers of different languages live next door to each other. One house has had special structural (9) _______ to make it suitable for students with disabilities. Most first year students live on campus. It's the easiest way to meet people when you first arrive and there’s always somebody to (10) _______. It’s a busy, lively place, but because the campus is in the middle of parkland, you can (11) _______ off and be alone if you want to.
(9)
A.changes
B.adjustments
C.exchanges
D.alterations

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks.
SETTLING IN OUR UNIVERSITY
The university campus is like one big village where thousands of students live, work and relax surrounded by rolling green fields. It is the centre of the student (7) _______ in all its variety. While it is basically a place for young people, there are a (8) _______ of family flats and children are never far away. People come to live here from all over the world, so members of different cultures and speakers of different languages live next door to each other. One house has had special structural (9) _______ to make it suitable for students with disabilities. Most first year students live on campus. It's the easiest way to meet people when you first arrive and there’s always somebody to (10) _______. It’s a busy, lively place, but because the campus is in the middle of parkland, you can (11) _______ off and be alone if you want to.
(11)
A.limp
B.crawl
C.wander
D.march

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the best option for each of the blanks.
SETTLING IN OUR UNIVERSITY
The university campus is like one big village where thousands of students live, work and relax surrounded by rolling green fields. It is the centre of the student (7) _______ in all its variety. While it is basically a place for young people, there are a (8) _______ of family flats and children are never far away. People come to live here from all over the world, so members of different cultures and speakers of different languages live next door to each other. One house has had special structural (9) _______ to make it suitable for students with disabilities. Most first year students live on campus. It's the easiest way to meet people when you first arrive and there’s always somebody to (10) _______. It’s a busy, lively place, but because the campus is in the middle of parkland, you can (11) _______ off and be alone if you want to.
(8)
A.block
B.quantity
C.pile
D.number

My uncle is a .................... He composes music and plays the piano very well.
A.musician
B.music player
C.music writer
D.music fan