【单选题】【消耗次数:1】
They can’t leave until they ___ their work.
did
are doing
have done
has done
参考答案:
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相关题目
【单选题】 8.They can’t leave until they ______ their work.
①  did
②  are doing
③  have done
④  has done
【单选题】 They can’t leave until they _________ their work .
①  did
②  are doing
③  have done
④  his done
【单选题】 They can’t leave until they _______ their work .
①  did
②  are doing
③  have done
④  his done
【判断题】 John has never acted as he should have done. 此句中的“done”替代了“has”.
①  正确
②  错误
【单选题】 They have done things they ought_____.
①  not to do
②  not to be done
③  not to have done
④  not having done
【单选题】 25. I can’t go—for one thing, I have no money, and ___, I have too much work.
①  what’s more 
②  as well 
③  for another 
④  in addition
【单选题】 _______I like most is_______I can have a party after work.
①  That,that
②  What, that
③  What, what
【单选题】 Is she still angry _______what Tom has done?
①  to
②  with
③  about
【单选题】 Can anything be done to_________ the negative influence of some television programs?
①  accept
②  assume
③  avoid
④  alarm
【单选题】 24.In those days all the work had to be done ___hand.
①  with
②  in
③  by
④  on
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