10鲜花
最佳答案had done 是过去完成时,就是过去的过去,在过去某一时间点之前发生的事
比如:我昨天到这的时候,他已经吃过饭了/走了。
When I came here yesterday, he had had his lunch / he had left.
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had done 是过去完成时,就是过去的过去,在过去某一时间点之前发生的事 比如:我昨天到这的时候,他已经吃过饭了/走了。 When I came here yesterday, he had had his lunch / he had left. |
万分感谢! |
have left 就是说他走了 had left 就是说他已经离开了,不再回来了 |