---Whydidn’tyouhelpthelittleboy?---Oh,sorry．Hehadstruggledtohisfeet___

发布时间：2020-08-07 01:30:15

---Why didn’t you help the little boy?---Oh, sorry．He had struggled to his feet ________ I ran over．A.beforeB.afterC.untilD.since

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A解析考查连词．根据语境，选A．本句意为“我还没有来得及跑过去，他就已经站起来了．”
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