Как задать спец и общий вопрос к предложению my granny was sewing in the drawing-room when i returned home

What was my granny doing in sewing in the drawing-room when I returned home?

Was my granny  sewing in the drawing-room when I returned home?

who was sewing in the drawing-room when I returned home?

when was my granny sewing when I returned home

what my granny was doing in the drawing-room when I returned home