He has been away from China( )three years ago

He has been away from China( )three years ago lucy has been away from hei home for three years Has he been a docture for three years ago? He has been away from here for ten years Mary has been in China since three years ago.等于什么 He has been away from home for three yeas中怎么对for three yeas提 His uncle has not been back ( ) he left home three years ago He has been in Beijing since three years ago.(改为一般疑问句） he has been away from the school for many years .中”from”可以省去 he has been away from the factory .a a week ago b since a we He has been away from the factory ---------.A.a week ago B.s We have been in China for three years ago .改错