having been done 与 have been done 的区别和用法?求大神帮助
人气：202 ℃ 时间：2020-05-12 15:54:50
解答
having been done是过去完成进行时的被动语态,表示过去某一时间正在发生的被动的动作：that shirt having been washed by my mom yesterday.have been done是过去完成时,标一件事已经被完成了：that shirt have been...
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