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        1. —Do you know about the accident which happened in the center of the city?
          —Yes. But it was some time           we realized the truth.
          A.before B.whenC.sinceD.until
          A

          試題分析:考查連詞辨析。句意:——你知道發(fā)生在市中心的那起事故嗎?——知道。但過了一段時間之后我才知道真相。答案選A。 句型:It was some time before……表示“過了一段時間之后才……”。
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