have done和had done的区别如题,为什么有一题中文是他妹妹已经死了,用has gone而不是had gone

have done 与其 had done 的区别 had have done 和had done怎样区分? may have done和may have done 的区别RTmay have done和might have done 现在完成时和过去完成时一般的意思是什么 have done和had done的意思如题 have done、 would do,were doing和had done的不同 be done,have done ,having done和done之间的去别做题时怎么分别他们啊 have done和have been done 的区别, could have done和would have done的区别 should have done和could have done的区别? have done和have been done的用法是什么? should have done 和should not have done的区别 could have done 和 might have done 的区别 英语 would have done 和should have done 的用法 have been doing 和have done 还有had done三者的区别,用法举几个例子, sth.done 和 have sth.done 的意思和区别! If had done,sb would do sth和If had done,sb would have done有什麼区别? 有关have done 和be done的问题,什么时候用be done 什么时候用 have 以及have been done. have been done和be done的区别