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 |
D
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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