He have been practising that one for far too long意思?

He should have been at boarding school should have been He is said to have been there He must have been ill,___ he?如何变反意疑问句 where _ he he_to the library.A have been,went B have been ,have been C has been,went继续上面的“D has been,has been 英语翻译He's been calling,见过have been 没见国is been? He can't have been.He must have been.不是说单三用has吗?这里怎么用的have? he can't haue been a dcntist.he must have been a doctor.翻译下 i think he must have been a mechanic,中的must和have been是什么词啊? he had been here,everything would have been all right和had he been here ,everything would have been all right 的区别是什么?怎么判断的, He would have been getting beijing.怎么翻译? He must have been here yesterday,( 改为反义疑问句为什么 i'm surprised that he should have been so foolish where have you been he asked Andy 改为间接引语 单句改错 He has said to have been born abroad. he is so -------(friend).we have been ------(friend ) for2 years. he must have been mistaken 帮助翻译一下 Since he left after I have been looking for living. I have been ----(想念)him since he left.