Question

[Trần Quế Chi]

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ill in the blanks with 'WHEN' or 'WHILE' ______ my father was reading a book , my mother was looking at the family album. I was having a shower , ______ my friend broke my mother's favourite vase. ______ the teacher came into the classroom ,some students were arguing with each other. I arrived home , ______ all the guests were having tea and biscuits. ______ she was a little girl , she visited her relatives with her mother. I liked working in group and pairs , ______ I was a secondary school student. ______ Sue was waiting for the 12 o'clock train , she met an old friend. The Pearsons were having a large breakfast , ______ the doorbell rang. My father was waiting in the car , ______ my mother was doing shopping. .What were you doing ______ the teacher looked at you suddenly. . ______ the train left , Thomas was rushing to the station. .The electricity went off , ______ we were watching a horror film. . ______ Mathew was going to the library , he saw a car accident on Mapple Street. .The baby boy started crying , ______ his mother was combing her hair. . ______ the mother was doing the washing up , the twins were sweeping the floor. .The sun was rising , ______ we reached the summit of the mountain. . ______ Susan entered the living room , everybody began singing 'Happy Birthday'. .Mr.Robinson fell off the tree ______ he was looking at the little bird's nest. . ______ I dropped the vase , it broke into