has/have been和had been的問題!! - Yahoo!知識+

has/have been和had been的問題!! - Yahoo!知識+

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日期:2025-06-23
... 'I finished typing before lunch.' 以上3句是否正確?!用法有什麼分別?! e.g. ' I sent an mail to you .' ' I have sent an mail to you.' ' I have been sent an mail to you.' ......看更多