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    科目： 来源：不详 题型：单选题


    Up to now, the weather______ pleasant for the journey. I hope our good luck will continue.
    A．isB．wasC．has been D．will be

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    科目： 来源：不详 题型：单选题


    . Jane Goodall with her assistants ______ for the forests to learn more about the chimps.
    A．are setting offB．is setting offC．have set off D．sets off

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    科目： 来源：不详 题型：单选题


    His daughter was disabled after a serious illness in 2003 and in the last seven years, he     
    money to help those children like his daughter.
    A．has raisedB．has been raisingC．had raisedD．was raising

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    科目： 来源：不详 题型：单选题


    With the rapid growth of population, the city______ in all directions in the past five years.
    A．spreadsB．has spreadC．spreadD．had spread

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    科目： 来源：不详 题型：单选题


    . By the year 2020 scientists _____ a lot of research on AIDS.
    A．had doneB．doC．are doingD．will have done

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    科目： 来源：不详 题型：单选题

    But for the fact that the firefighters _____ at the spot in time, more people ______ their lives in the fire.
    A．arrived; diedB．had arrived; would lose
    C．arrived; would have lostD．has arrived; could have lost

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    科目： 来源：不详 题型：单选题

    I ________ to help you with your homework, but I couldn’t spare any time. I ________ a composition last night and I’ll finish it today.
    A．wanted; wroteB．had wanted; was writing
    C．have wanted; wroteD．wanted; have been writing

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    科目： 来源：不详 题型：单选题

    Flight 3010______,I must be off now or I’ll be late.
    A．to announceB．is announcedC．is being announcedD．announced

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    科目： 来源：不详 题型：单选题

    By the time you ____ in, I ____ two letters.
    A．had come, had writtenB．came, wrote
    C．come, have writtenD．came, had written

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    科目： 来源：不详 题型：单选题

    —I’ll call you at 9 tomorrow morning, OK?
    —You’d better not, I ______ the piano then.
    A. will be practicing                                        B. am about to practice
      am practicing                                        D. practiced

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