have been doing和 have +动词过去分词 的区别.
have been doing和 have +动词过去分词 的区别.
have been doing 和have +动词过去分词的差别.
have+过去分词和have been+过去分词的区别
过去现在时 have /has been doing和have/ has +过去分词的区别
have been+过去分词、与have+过去分词的区别
have 动词过去分词.和have been 过去分词的用法
have been doing 和have+过去分词有什么不同?
have+过去分词,和have been+过去分词的区别.都是现在完成时吗?
have/has+been doing 与has/have+过去分词的区别
have been+动词过去分词 和have+过去分词有什么不同?
have been doing sth=have 直接加动词过去分词吗?
will have been doing和have been doing的区别