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    科目： 来源：不详 题型：单选题

    Although everything seems to have been taken into consideration, ________    accident can happen when the astronauts walk in   ________   space.
    A．/; theB．an; the C．the; theD．an; /

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    科目： 来源：不详 题型：单选题

    As he approached ______ front door, Jack saw ______ strange sight.
    A．the;/B．a; theC．/; aD．the; a

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    科目： 来源：不详 题型：单选题

    It’s ________great surprise to find the poor little girl lives alone in _________
    countryside.
    A．a; theB．a; 不填C．不填; theD．不填；不填

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    科目： 来源：不详 题型：单选题

    In my opinion, Tony is _____ success because he has bought _____ third car though he already has two.
    A．a ; aB．a ; theC．/ ; theD．/ ; a

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    科目： 来源：不详 题型：单选题

    — Can you tell me something about _________ science.
    — OK. _    Nobel Prize in Chemistry is usually awarded to Americans.
    A．the; The B．/; The C．a; /D．the; /

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    科目： 来源：不详 题型：单选题

    Jack was      failure as a leader, but he achieved      great success in writing.
    A．a; aB．a; /C．/; aD．/; /

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    科目： 来源：不详 题型：单选题

    The incident turned him into          different person, even if he did  not  realize  it  at          beginning.    
    A．a; aB．the; theC．the; aD．a; the

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    科目： 来源：不详 题型：单选题

    Barack Obama,          African America, was elected as          56th President of the United states.
    A．/，theB．/， /C．an ， theD．an ， /

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    科目： 来源：不详 题型：单选题

    Mrs. Taylor has          8-year-old daughter who has          gift for painting – she has won two national prizes .
    A．a ; aB．an ; theC．an ; a D．the ; a

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    科目： 来源：不详 题型：单选题

        World Wide Web was invented in 1991 by    English scientist ,Tim Burners-lee.
    A．\; anB．The; anC．The; theD．A; the

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