Помогите с заданием!

1. He was working at 5 o'clock yesterday.

2. I was watching TV at 7 o'clock yesterday.

3. They were having dinner when I phoned them.

4. He was having lunch when I phoned him.

5. He was doing his homework when his mother entered his room.

6. The students were listening to the teacher when I entered the classroom.

7. It often rains here in October.

8. Does it often rain here?

9. Don't put on your raincoat. It isn't raining.

10. Did it rain yesterday?