Нужно поставить либо в past simple либо в past continuous. 1) What subject ... (you, study) when school finished yesterday?

1) What subject were you studying when school finished yesterday? 2) What was your mum doing when you got up this morning? 3) What were you wearing when you had breakfast today? 4) Did you meet your friends while you were coming to school this morning? 5) What were you doing when your English teacher arrived in the classroom? 6) Did you use a computer while you were doing your homework last weekend?