Thanks 樓上兩位

來源: 學英語3151 於 2011-06-22 06:31:15 [] [舊帖] [給我悄悄話] 閱讀數 : (232 bytes)
回答: 提上來討論一個寫作問題 由 學英語3151 於 2011-06-21 11:49:06

Yes, I understand the concept when to use past progressive. But in the case I mentioned, when both simple past and past progressive are both grammarly correct, I was having hard time to choose one or the other 

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