2
I didn’t meet my old friend when I was staying in Prague. 3 She walked into a tree when she was
talking on her mobile phone. 4 When he was shopping, he lost his wallet. 5 When
I was washing up, I broke a glass. 6 When they were driving home, they ran out
of petrol. 7 He broke the key when he was trying to open the door. 8 We were
not swimming when we heard the screams.