Choose the word or phrase that best completes the sentence or substitutes for the underlined word or phrase. 
Many communities are dependent oil groundwater ..... from wells for their water supply.
A.that obtained  
B.obtained 
C.is obtained    
D.obtain it

A.allow
B.how
C.bows
D.show

I’m afraid they weren’t very __________ about your idea of going out this evening.
A.enthusiastically  
B.enthusiastic    
C.enthusiasm  
D.enthusiast

_______(50)
A.mustn’t   
B.don't      
C.needn't    
D. can' t

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He has been to the school library many times ______.
A.if the semester has started
B.while the semester is starting
C.since the semester started
D.after the semester starts

His illness made him______ of concentration.
A.incompetent
B.unable
C.incapable
D.powerless

According to the passage, which of the following is NOT mentioned?
A.Harvesting from the natural environment had existed long before farming was taken up.
B.Hunting or fishing develops where there are no or short growing seasons.
C.The number of hunter-gatherers decreases where farming is convenient.
D.The environmental differences produce no effect on subsistence societies.

_______(65)
A.experience
B.backgrounds       
C.lessons  
D.knowledge

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

A.advise                     
B.parent                      
C.apply                      
D.attract

According to the passage, which of the following is NOT True about Spurlock?
A.He is a director.
B.His film answers well the question raised at the beginning.
C.He is not interested in answering the question he raised.
D.His film presents a lot of untypical interviews.