(B) 错在过去完成式, OG说的很清楚了: 过去完成式要用于比一个过去动作发生的还要早的动作, 类似题目可以参考OG-108 Choice B inappropriately switches to the past perfect (had been); the past perfect properly describes action that is completed prior to some other event described with the simple past tense.
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发表于 2005-6-22 15:55:00
