Lucy has been cleaning the house since came back home.

Lucy has been cleaning the house since came back home. The light has been since Mary came back home 对since mary cam I_____(finish) cleaning the house before my mother came back lucy has been my friend since she since she came to china 对划 The work has been finished since they came here the house has been _______ since the 1500s. He has been running since l came. since it came into being,the computer has almost been synony It has been ten years since the Labour Party came into _____ It has been ten years now since the Labour Party came to____ Since the Great Wall came into being,it has often been added He ______(play) computer games since he came back home