问题描述： 英语中主语加过去分词加动词ing 是什么时态 1个回答 分类：英语 2014-09-28 问题解答： 我来补答 Had+been+Ving=过去完成时过去一直做的事情持续到某一个特定时间并对现在产生影响ex：The floor is wet,It had been ranning下结论 ex:She is out of breath,it is clear that she had been running. 展开全文阅读
