题目内容
--- Did he realize the serious situation immediately?
--- No. It was quite a long time ______ he really realized it.
- A.now that
- B.when
- C.ever since
- D.before
解析:
连词辨析。A.既然;由于 B.当……时C. 从那时到现在 D. 在……之前。句意:他理解意识到了这严重的情况吗?——不,在他真正意识到它之前,有相当长一段时间。故选D。
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