(2014·兖州模拟)—Why do you look so worried?—My computer broke down last week and my essay has been left________since.
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A
finished
B
prepared
C
done 
D
unfinished
推荐题目
It is difficult for you to ______ what will happen in space without gravity.
#78479
A
depend on
B
have some idea of
C
keep from
D
equip with
   One the last day he _________.
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A
decided a big decision
B
decided greatly
C
made a decision
D
had made a decision
Don’t ________ women. They are as important as men for the development of society.
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A
look up to
B
look down upon
C
look out for
D
look forward to
The policeman _______ the facts again and again, but couldn’t piece them together.
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A
got through
B
picked up
C
went over
D
turned over