1. We are having an English lesson now.
2. The teacher is standing at the blackboard and explaining new grammar.
3. The students are listening attentively and writing down.
4. Where were you yesterday afternoon?
5. I was at home all day long.
6. I was writing a letter to my friends.
7. What were you doing five minutes ago?
8. There was an accident in our street.
9. I was looking out the window when it happened.
10. What will your sister be doing at 8 p.m.?