Once you know______ a computer, you will be able to work as a secretary.
A.to use
B.the use of
C.use
D.how to use

(50)  
A.signs           
B.signals
C.sight            
D.signatures

Part 12: 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.
Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earth’s ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and runoff of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have irrevocably redirected the course of evolution.
Certainly, there have been periods in Earth’s history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only 0.01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died out.
However, nothing has ever equaled the magnitude and speed with which the human species is altering the physical and chemical world and demolishing the environment. In fact, there is wide agreement that it is the rate of change humans are inflicting, even more than the changes themselves, that will lead to biological devastation. Life on Earth has continually been in flux as slow physical and chemical changes have occurred on Earth, but life needs time to adapt-time for migration and genetic adaptation within existing species and time for the proliferation of new genetic material and new species that may be able to survive in new environments.
The author mentions the extinction of the dinosaurs in the 2nd paragraph to emphasize that                      .  
A.the cause of the dinosaurs’ extinction is unknown
B.actions by humans could not stop the irreversible process of a species’ extinction
C.not all mass extinctions have been caused by human activity
D.Earth’s climate has changed significantly since the dinosaurs’extinction

As Joe's roommate, I find him a fairly nice fellow, even if at times it is not easy to ______his noisy behavior.
A.put up with 
B.look up to 
C.get on with 
D.catch up with

Choose A, B, C, or D that best completes the sentence.
The mother called the police and said ____.
A.which was her son kidnapped                       
B.which her son was kidnapped
C. that her son was kidnapped                  
D.that was her son kidnapped

Judie is going to marry a man that She hardly knows him.
A.is going to
B.that
C.hardly
D.knows him

A.sugar
B.settle
C.surprise
D.sentence

Mark the letter A, B, C or D in your answer sheet to indicate the underlined part that needs correction in each of the following questions.
When we arrived her house, I found she has been out with her new friend without leaving me a note.
A.arrived                            
B.has been  
C.leaving                     
D.a note

/ feel / like / go out / this evening / ? /
 
A.Are you feel like going out this evening?
B.Do you feel like going out this evening?
C.Do you feel like to go out this evening?
D. Do you feel to like going out this evening?

____________(10)
A.drive
B.watch
C.do
D.play