【单选题】【消耗次数:1】
They can’t leave until they _______ their work .
did
are doing
have done
his done
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相关题目
【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  has done
【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 have done things they ought_____.
①  not to do
②  not to be done
③  not to have done
④  not having 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
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①  accept
②  assume
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①  with
②  in
③  by
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【单选题】 28.Fool ____ Jane is, she could not have done such a thing.
①  who
②  as
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【单选题】 I should think they have done it ________, to avoid paying you the money.
①  with purpose
②  on purpose
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①  正确
②  错误
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