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How long do you think it will be _____ I can go back to work?
A.beforeB.whenC.untilD.that
A

试题分析:考查连词,A. before在…之前;B. when当…时候;C. until直到…;D. that指起连接作用,没有任何意义,句子意思“你认为我回去工作需要多长时间”
点评:连词是个常考内容,要知道每个连词的意思,遇到此类题时,就很容易做出选择
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