----When did you move to Sanya?---In 2008．But I in Tibet for 8 years.A．has worked B．has been workedC．have been working D．worked

When did you leave? When did you coneback? when did you come back? when did you have it when did you go last when did you sleep last when did you go last When did you go to When did you [ ] a meeting? when did you () here yesterday? When did you come to When did you have dinner When did you start out? When did you come to when did you go there? ----When did you ______ breakfast? when did you start to______? When did you come play