was published是什么时态
回答
爱扬教育
2022-03-11
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扩展资料
过去完成时常用的时间状语有:
1. by the end of last+时间段. By the end of last term, we had learned 5000 new words.
到上学期末,我们已经学了5000个新词。
2. By the time sb. +动词过去式如: The bus had already left by the time I got there.
我到那儿时,公共汽车已经开走了。
3.By (the time of)+时间段
By the time of last year ,we had built two bridges.
到去年为止,我们已经建了两座桥。