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    288. Astronomers and scientists think that
a black hole is a region of space _____ which matter has fallen and _____ which
nothing can escape.
    


    　　 A. into; from　　　　　　　　 B.
towards; towards　　　 C.
out of; from　　　　　　　　　　 D.
through; through
    

			
    
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    287. We all do more speaking more speaking
_____, even when we have a break after class.
    


    　　 A. now and then 　　　　　 B.
by and by 　　　　　　　 C.
step by step　　　　　　　　　　 D.
more or less
    

			
    
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    286. During the test we were supposed to
stay in our seats, keep our eyes on our work, _____ to anyone.
    


    　　 A. but could not talk　　　 B. instead of
speaking　　 C. rather than
speak　　　　　　　 D.
and not speak
    

			
    
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    285. _____ so much electrical equipment,
wood and paper in one place, there a danger of fire.
    


    　　 A. For　　　　　　　　　　　　　 B.
In　　　　　　　　　　　　　　 C.
with　　　　　　　　　　　　 D.
By
    

			
    
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    284. He will pass two milestones _____,
that is, he will receive his master’s degree and find a challenging job.
    


    　　 A. long ago　　　　　　　　　 B.
for long　　　　　　　　　 C.
before long　　　　　　　 D.
long before
    

			
    
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    283. The president’s speech was _____
boring; it is, in fact, rather inspiring and interesting.
    


    　　 A. anything but　　　　　　 B.
nothing but　　　　　　　 C.
no more　　　　　　　　　 D.
all but
    

			
    
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    282. Among the films being nominated(提名) _____ directed by Zhang Yimou.
    


    　　 A. is a popular film　　　　　　　 B.
is as popular　　　　　　 C.
a popular film　　　　　 D.
one is popular
    

			
    
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    281. Jason has been preparing carefully for
his English examination so that he could be sure of passing it at his first
_____.
    


    　　 A. purpose　　　　　　　　　　 B.
desire　　　　　　　　　　　 C.
attempt　　　　　　　　　　 D.
intention
    

			
    
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    280. _____ a fire, hotel guests are asked
to remain calm.
    


    　　 A. As a result of　　　　　　 B.
In the event of　　　　　 C.
By reason of　　　　　　 D.
In the time of
    

			
    
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    279. The study　　　  you have been making _____ the
ancient Chinese characters is an instructive job.
    


    　　 A. to　　　　　　　　　　　　　　 B.
for　　　　　　　　　　　　　 C.
of　　　　　　　　　　　　　　 D.
from
    

			
    
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