1) What was your mother doing when you arrived home?
2) Where was your father going when you saw him in the street?
3) Why was your friend crying when you entered the classroom?
4) Who helped your mother while she was cooking?
5) What did you buy when you last went shopping?
6) What was your friend doing while you were studying?
7) What did your father do when he saw your report?
8. What was your teacher doing when you saw her in the morning?