Помогите пожалуйста!
Заполните пропуски, используя did, was,were
1 I ... reading when he called.
2 They ...waiting for the bus when I saw them.
3 Where ... you born?-I...born in London.
4 Yesterday at five there ... a good concert on.
5 ... you listen to it?
6  I... listening to it when my parents arrived.
7  What ... you doing when you saw them.