--Where were you and what were you dcing at nine o`clock this morning?
Where were you and what were you dcing three years ago?
Where were you and what were you dcing in July last year?
Where were you and what were you dcing this time yesterday?

At nine o'clock this morning I was sitting on the lesson im my school.Three years ago I was visiting Paris.I was living in a camp in the Alps in July last year.I was sitting in my room and goind my homework this time yesterday.