Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
Not until a monkey is several years old ________to exhibit signs of independence from its mother
A.beginning
B.does it begin
C.and begin
D.it begins

- “How do you usually go to school?”
- “_______ "
A.Two kilometres   
B.On foot
C.Half an hour 
D.Five days a week

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
Many student couldn’t _______, but the teacher _______ the problem by going into a detailed explanation
A.catch up/ cleared away
B.catch up with/ cleared off
C.catch on/ cleared up
D.catch at/ cleared out

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
Last week, the professor promised that he _________ about the Internet 3.0 today
A.told
B.tells
C.would tell
D.is telling

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
The more he tried to explain, ______ we got 
A.the much confused 
B.the many confusing 
C.. the more confusing 
D.the more confused

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
I must go to the dentist and ___________
A.get my teeth to take care of
B.take care of my teeth 
C.my teeth be taken care of 
D.get my teeth taken care of

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
-  Why not open the windows to let ______ clean air in ?
                      - I’d rather you didn’t . _____air in our town is quite polluted ?
A.0 (nothing)- 0
B.0- The
C.a- The
D.The- 0

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
“Have you told your dad what’s bothering you?” “I’d ________ in you than my parents.”
A.rather to confide
B.better confide
C.rather my confiding
D.sooner confide

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer in each of the following questions
. "You have a good voice!"
                         "_________"
A.I appreciate it
B.Well-done
C.Yes, of course
D.You've done a good job

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 .
         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 nonelective 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 eaten 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 line 5 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 nonelective