I had finished my homework before supper.(我在晚饭前就已经完成了我的作业。)
The play had already started when we got to the theatre.(当我们到达剧院时,戏剧已经开始。)
By the end of June they had treated over 10000 patients.(到六月底,他们已经治疗了10000多名患者。)
这些例句展示了work的过去完成时在不同语境下的应用,通常用于描述在过去某一时间点之前已经完成的动作。
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