_________(51)
A.explaining   
B. interpreting
C.suggesting 
D.presenting

_________(50)
A.events      
B.stories             
C.facts   
D.materials

_________(49)
A.assists 
B.pays      
C.helps          
D.works

_________(48)
A.antonyms    
B. closest  
C.opposite    
D.controversies

_________(47)
A.evidence                
B.roof     
C.examples    
D.cases

The word "revolutionized" is closest in meaning to _______.
A.quickly started 
B.gradually opened  
C. dramatically changed    
D.carefully examined

According to the passage, iron was NOT used for beams, columns, and girders prior to the early eighteenth century because _______.
 
A.all available iron was needed for other purposes
B. limited mining capability made iron too expensive
C.iron was considered too valuable for use in public buildings
D.the use of charcoal for refining ore produced poor quality iron

Part II. In about 140 words, write a paragraph about why is it important to protect our environment? What should we do to fulfill this task?
A.
B.
C.
D.

Part I. Finish each of the following sentences in such a way that it means the same as the sentence printed before it.


65. It wasn’t necessary for you to buy so many chips as you did.


You needn’t ........................................................................


66. Much as he tried hard, he didn’t succeed in installing the software.


However ..............................................................................


67. He lost his job because he was very lazy.


But ......................................................................................


68. It was not until midnight that he could finish his homework.


Not until ..............................................................................


69. If only I hadn’t bought the secondhand motorbike.


I regret ..............................................................................
A.
B.
C.
D.

The paragraph following the passage most probably discusses _______
 
A.the gradual inclusion of exposed iron in traditional styles of architecture
B.further improvements in iron processing methods
C. the return to traditional building materials for use in commercial structures
D.the decreased use of stone and timber as a building material