更多“单选题_____A placeB have placedC have been placingD be placed”相关问题
  • 第1题:

    John told us that by the end of the year they _____ together for thirty years.

    A. would have been living

    B. would have lived

    C. would have been lived

    D. will have been living


    参考答案: A

  • 第2题:

    If only it ()so cold, perhaps I, too, ()more initiative.

    A、had been,have shown

    B、have been,would show

    C、had’t been,cound't have shown

    D、had't been,could have shown


    参考答案:D

  • 第3题:

    There is always ______ for improvement no matter how much you have already done.

    A、place

    B、area

    C、room

    D、space


    参考答案:C

  • 第4题:

    His parents _______ the US for ten years.

    A、have been

    B、have gone to

    C、have been to

    D、have been in


    正确答案:D

  • 第5题:

    夹子用完了。()

    • A、Clamps have been used up.
    • B、Lashing wires have been used up.
    • C、Twist locks have been used up.
    • D、Turnbuckles have been used up.

    正确答案:A

  • 第6题:

    Great changes () in China since 1978.

    • A、take the place
    • B、took the place of
    • C、have taken place 
    • D、have been taken place

    正确答案:C

  • 第7题:

    单选题
    John, how lazy you are! This work ______ three days ago.
    A

    should have done

    B

    must have been done

    C

    should have been done

    D

    might have done


    正确答案: C
    解析:
    句意:这份工作本该三天前完成的。should have done表示应该做而没有做,含有责怪之意。must have done意为“一定做了”,表示肯定的推测。

  • 第8题:

    单选题
    The room is in a terrible mess; it ______ cleane
    A

    can't have been

    B

    mustn't have been

    C

    shouldn't have been

    D

    wouldn't have been


    正确答案: A
    解析:
    句意:房间里一团糟,不可能被打扫过。表示否定推测要用can’t,又因为是对过去的推测,所以要用完成时。

  • 第9题:

    单选题
    夹子用完了。()
    A

    Clamps have been used up.

    B

    Lashing wires have been used up.

    C

    Twist locks have been used up.

    D

    Turnbuckles have been used up.


    正确答案: C
    解析: 暂无解析

  • 第10题:

    单选题
    The investigations into the air disaster would have been completed, but new facts have now been _____ by the injured pilot.
    A

    exposed

    B

    revealed

    C

    confessed

    D

    admitted


    正确答案: A
    解析:
    句意:对空难的调查本应该已经完成了,但是受伤的飞行员还没有透露什么事实。reveal揭露,透露。expose暴露。confess坦白。admit承认。

  • 第11题:

    单选题
    I have been for years troubling the pages of historians, to find out what our fathers have done to the native Americans, but I must say, that my researches have _____ been to no effect.
    A

    therefore

    B

    hitherto

    C

    however

    D

    nevertheless


    正确答案: B
    解析:
    句意:我花了几年的时间来阅读历史学家的书,为的是找到我们的祖先对美国印第安人做了什么事,但是我必须说到目前为止,我的研究还没有什么成效。therefore因此。hitherto至今。however无论如何。nevertheless仍然,不过。

  • 第12题:

    单选题
    While designing your database, you have created the EMPLOYEEStable as an index-organized (IOT). You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index?()
    A

     A primary key must have been created.

    B

     A mapping table must have been created.

    C

     An overflow tablespace must have been specified.

    D

     The PCTTHRESHOLD option must have been specified.


    正确答案: A
    解析: 暂无解析

  • 第13题:

    John and I ______ friends for eight years. We first went to know each other at a Christmas party. But we ______ each other a couple of times before that.

    A had been; have seen

    B have been; have seen

    C had been; had seen

    D have been; had seen


    参考答案:D

  • 第14题:

    Great changes ______ in Shanghai since the beginning of the reform. and opening-up policy.

    A. took place

    B. has taken place

    C. has been taken place

    D. have taken place


    参考答案:B

  • 第15题:

    This is the first time the students ______ to Hyde Park.

    A、have been

    B、have been gone

    C、have been going

    D、are being gone


    正确答案:A

  • 第16题:

    After each container has been stuffed,responsible personnel will ensure that the doors have been securely closed and are watertight and a ______ has been placed on the container.

    A.real

    B.deal

    C.seal

    D.meal


    正确答案:C

  • 第17题:

    They()for hours.

    • A、have been driving
    • B、have been driven
    • C、drove
    • D、drive

    正确答案:A

  • 第18题:

    Since 1991,the goals set in the plan()

    • A、have been largely achieved
    • B、have largely not been achieved
    • C、have been achieved in some significant areas
    • D、have not been achieved at all

    正确答案:B

  • 第19题:

    单选题
    You can take off your raincoat now. The rain seems to stopped.
    A

    to stop          

    B

    to have stopped

    C

    to have been stopped

    D

    to have been stopping


    正确答案: A
    解析:
    句意:你现在可以脱掉雨衣。雨似乎已经停了。按本题首句规定的语境,[B]是符合常理的选择,因为不定式的完成时态用于表达已经发生的事。[C]则只适用于某种特定情景(如以人工手段制止降雨,但这并不现实)。

  • 第20题:

    单选题
    I was on the highway when this car went past followed by a police car. They _____ at least 150 km an hour.
    A

    should have been going

    B

    must have been going

    C

    could have gone

    D

    would have gone


    正确答案: D
    解析:
    must have done表示有把握的肯定的推测,又因为是对过去某一时刻的推测,因此用过去完成进行时。句意为:当这辆车和紧随其后的警车经过时,我在高速路上。它们的时速至少是150公里。

  • 第21题:

    单选题
    What has happened to housing prices recently?
    A

    They have been rising quickly.

    B

    They have been falling quickly.

    C

    They have stopped rising quickly.

    D

    They have stopped falling quickly.


    正确答案: C
    解析:
    录音中指出“…housing prices will stop rising as quickly as they have been recently and may even fall somewhat.”(房价将会停止最近快速上升的势头,甚至有可能会稍微下降),as…as句型是本题的关键,由此可见最近房价快速上升。

  • 第22题:

    单选题
    While designing your database, you have created the EMPLOYEES table as an index-organized table (IOT). You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index?()
    A

    A primary key must have been created.

    B

    A mapping table must have been created.

    C

    An overflow tablespace must have been specified.

    D

    The PCTTHRESHOLD option must have been specified.


    正确答案: D
    解析: 暂无解析

  • 第23题:

    单选题
    You ()him so closely; you should have kept your distance.
    A

    shouldn’tfollow

    B

    mustn’tfollow

    C

    couldn’t have been following

    D

    shouldn’t have been following


    正确答案: C
    解析: 暂无解析

  • 第24题:

    单选题
    The room is in a terrible mess, it _____ cleaned.
    A

    can't have been

    B

    mustn't have been

    C

    shouldn't have been

    D

    wouldn't have been


    正确答案: C
    解析: