1. It was raining at noon.

    Was it raining at noon?

    It wasn't raining at noon.

2.  I was on holiday in Bulgaria two weeks ago.

     Was I on holiday in Bulgaria two weeks ago?

     I wasn't on holiday in Bulgaria two weeks ago.

3. I saw a lion in the zoo yesterday.

    Did I see a lion in the zoo yesterday?

    I didn't  see a lion in the zoo yesterday.

4. I was on swimming two years ago.

    Was I on swimming two years ago?

    I wasn't on swimming two years ago.

5. Sam was working in the garden all day.

    Was Sam working in the garden all day?

    Sam wasn't working in the garden all day.

6. I was reading all day yesterday.

    Was I reading all day yesterday?

    I wasn't reading all day yesterday.

7. She was sitting in the library from 2 till 6 yesterday.

    Was she sitting in the library from 2 till 6 yesterday?

    She wasn't sitting in the library from 2 till 6 yesterday.

8. They were listening to music when my mother came.

    Were they were listening to music when my mother came?

    They weren't listening to music when my mother came.