型式 : had + P.P. (過去分詞) We were not able to get a hotel room because we had not booked in advance. ( 當時我們無法找 …
For example, “He had had dinner before he went to the party.” Here, the first “had” refers to the action of having dinner, …
When Karen arrived, we had dinner. — this means that they have not had dinner yet and as Karen has arrived, they are now …
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