1)I played different games
Who played different games?
I played different games , didn't I?
2)Kate and Mary went to the cinema yesterday
Did Kate and Mary go to the cinema yesterday?
Kate and Mary went to the cinema yesterday, didn't they?
3)The weather was bad last week
Was the weather bad last week?
When was the weather bad?
4)Ted met his best friend in 2004
Did Ted meet his best friend in 2004?
When did Ted meet his best friend?
5) I saw him yesterday
Who saw him yesterday?
I saw him yesterday, didn't I?