3 Complete the conversations. 1 What was Liz doing when you rang her? a At half past eight. b She was listening to the radio. c She didn't want to talk to me. 2 I saw you outside the town hall this afternoon. a Yes, I was waiting for Martin. b What did you do there? C No, I didn't! 3 What did you do when you lost your bag? a I was travelling in Switzerland. b I went to the police station. c I was feeling worried. 4 Was it raining when you left home? a Yes, it did. b No, I didn't. C No, it wasn't. 5 When did Alex get off the train? a When it was going to London. b When it stopped at Bolton. c While he was walking to the station.