"How long have you bee working at your present job?" she asked a. She asked me1/20"How long have you bee working at your present job?" she askedShe asked me how long I had been working at my present job.She asked me how long had I been working at my present job.She asked me how long I have been working at my present job.She asked me how long have you been working at your present job.Giải thíchChọn đáp án A