, поставить предложения в past simple или past continuous

1 Was he playing with his sister all day yesterday?

2 Did Andy write a letter to his friend yesterday?

3 When Pete was running in the park, he lost his mobile phone.

4 I saw Mike when he was crossing the street.

5 We were playing badminton while Sam was swimming in the river.

6 When grandpa was reading his newspaper, the postman came.

7 What were you doing at three o'clock yesterday?

8 Mum was cooking dinner when Ben was doing homework.

9 After supper she washed the dishes, read books and then went to bed.