had been 和had 怎么用?
had been 和had 怎么用?
had been done 怎么用?
Had been telling和 Had told
求问had gone和had been
用had been造句
has gone,had gone,has been,had been 该怎么使用(搞乱了,特别是had和has)
have done.have been done .had done.had been done 有什么区别?怎么用?有
had been,has been,has,had 后面加过去分词都是怎么用的?
had been doing 和had been done有什么差别
had been doing 和had been done有什么差别?
had been 和 Having been 区别?
have been 和had been 什么区别