1 Ron was sleeping when he heard a loud noise.
2 What were you doing when I phoned you?
3 Jenny wasn`t doing her homework when Nick arrived.
4 Maria and Paul were playing chess when their parents came home.
5 Sam and Kevin were visiting Barcelona`s stadium when they saw Messi.
6 While I was cooking dinner for my parents,my friend phoned me.
7 While I was looking out of the window, my cat stole my food from the plate.
8 Where were the athletes running when you saw them?