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过去完成时的概念与结构 概念：表示在过去某一时间或动作之前已经发生或完成了的动作，即“过去的过去( past-in-the-past )”。 构成：“助动词 had + 过去分词”，其中 had 通用于各种人称。 They had already had breakfast before they arrived at the hotel. 在到达旅馆之前，他们已经吃过了早饭。 She had finished writing the composition by 10：00 this morning. 今天早晨10点之前，她已经写完了作文。 (责任编辑：admin) |