been是be的过去分词;done是do的过去分词。常见的用法是have done和have been done,have done是主动形式的现在完成式,have been done是被动式的现在完成式。 1、done的含义及相关短语用法 形容词adj.已完成的;煮熟的;合乎礼仪的;合乎规矩的感叹词表示接受建议)动词·做...
Having been done是现在分词的完成时的被动语态,用的时候常常会出现一个段时间状语。having been done强调动作发生在谓语动词表示的动作之前。Having been done一般强调被动的动作。 相关推荐: 高考英语知识点汇总 come on四种意思分别是 最新高考资讯、高考政策、考...
33.The population of many Alaskan cities has ___ doubled in the past three years. A)larger than B)as great as C)more than D)as many as 34.All that can be done ___. A)have been done B)have done C)has done D)has been done 35.A person beating a drum o...
更多内容请点击：been和done的区别