1) I was having a shower ______ my friend broke my mother's favourite vase. a) when b) while 2) I arrived home ______ all the guests were having tea and biscuits. a) when b) while 3) I liked working in group and pairs ______ I was a secondary school student. a) when b) while 4) The Pearsons were having a large breakfast ______ the doorbell rang. a) when b) while 5) What were you doing ______ the teacher looked at you suddenly. a) when b) while 6) The electricity went off ______ we were watching a horror film. a) when b) while 7) The teacher came into the classroom ______ some students were arguing with each other. a) when b) while 8) Sue was waiting for the 12 o'clock train ______ she met an old friend. a) when b) while 9) The train left ______ Thomas was rushing to the station. a) when b) while 10) Mathew was going to the library ______ he saw a car accident on Mapple Street. a) when b) while 11) The baby boy started crying ______ his mother was combing her hair. a) when b) while 12) The twins swept the floor ______ the mother was doing the washing up. a) when b) while 13) We reached the summit of the mountain ______ the sun was rising. a) when b) while 14) Mr.Robinson fell off the tree ______ he was looking at the little bird's nest. a) when b) while 15) I was just leaving the house _______ it started to rain. a) when b) while 16) The phone rang _______ we were having dinner. a) when b) while 17) The power went out _______ I was watching a movie. a) when b) while 18) I found my keys _______ I was cleaning the sofa. a) when b) while 19) The dog started barking _______ the mailman arrived. a) when b) while 20) She cut her finger _______ she was cooking. a) when b) while 21) Everyone was quiet _______ the music was playing. a) when b) while 22) The bus arrived _______ I was looking at my phone. a) when b) while 23) He fell asleep _______ he was reading. a) when b) while 24) My car broke down _______ I was driving to work. a) when b) while 25) I was doing my homework _______ my sister played drums. a) when b) while

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