When I saw you, you were copying your colleague’s/ classmate's report. Why were you doing that?
I was copying my colleague’s/ classmate's report because ...
When I saw you, you were giving an envelope full of money to somebody. Why were you doing that?
I was giving an envelope full of money to somebody because ...
When I saw you, you were eating sandwiches from your hat. Why were you doing that?
I was eating sandwiches from my hat because ...
When I saw you, you were wearing pyjamas at work. Why were you doing that?
I was wearing pyjamas at work because ...
When I saw you, you were throwing your teacher's/ chief’s notes out of the window. Why were you doing that?
I was throwing myteacher's/ chief’s notes out of the window because ...
When I saw you, you were brushing your hair with a dog’s brush. Why were you doing that?
I was brushing my hair with a dog’s brush because ...
When I saw you, you were sleeping on the floor. Why were you doing that?
I was sleeping on the floor because ...
When I saw you, you were laughing on your own. Why were you doing that?
I was laughing on my own because ...
When I saw you, you were reading a book in Korean. Why were you doing that?
I was reading a book in Korean because ...
