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| 共计 3 道试题
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1 . -Shall we go out for a walk?
-I'm afraid not. We can't go out________our work is being done.
A.beforeB.untilC.as                           `D.after
2 . —Coach, can I continue with the training?
—Sorry, you can’t ________you haven’t recovered from the knee injury.
A.untilB.beforeC.asD.unless
2021-06-06更新 | 588次组卷 | 6卷引用:2012年普通高等学校招生全国统一考试英语(重庆卷)
3 . Scientists believe that it might be several years ______ the medicine can be used on human beings.
A.sinceB.whenC.beforeD.until
2016-11-26更新 | 318次组卷 | 1卷引用:2014-2015学年重庆巴蜀中学高一4月月考英语试卷
共计 平均难度:一般