1) ______ my father was reading a book, my mother was looking at photos. a) When b) While 2) My friend broke my mother's favourite vase _________ she came to my house. a) When b) While 3) ______ the teacher came into the classroom, some students were arguing with each other. a) When b) While 4) All the guests chatted together __________ they were having tea and biscuits. a) When b) While 5) ______ Sue was waiting for the 12 o'clock train, she listened to music. a) When b) While 6) What were you doing ______ the teacher looked at you suddenly? a) When b) While 7) ______ the train left, Thomas was rushing to the station. a) When b) While 8) My parents were sleeping ______ we were watching an adventure film. a) When b) While 9) Mr Robinson fell off the tree ______ he was looking into the bird's nest. a) When b) While 10) I was doing homework ______ my mother knocked at the door. a) When b) While

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