1) _________ I was playing in the garden, my mother called me. a) While / When b) When  2) Sarah broke her arm ______ she was riding her bike. a) while / when b) when  3) I was driving to school _______ I saw an accident. a) while b) when 4) I was going home ______ it started to rain. a) while b) when 5) He was watching TV _____ there was a blackout. a) while b) when 6) The kids arrived _____ I was having a bath. a) while / when b) when  7) What were you doing ______ you heard the news? a) while b) when 8) I was ready to go to bed ______ Sue arrived. a) while b) when 9) _________ she arrived, it was almost midnight. a) While  b) When  10) She waved goodbye ____ I left. a) when b) while 11) It was snowing _______ I woke up. a) while b) when 12) _____ the telephone rang, Daisy was cooking. a) While  b) When  13) ______ the train left , Thomas was rushing to the station. a) When  b) While  14) ______ my father was reading a book , my sister slept. a) While / When b) when 15) ______ the teacher came into the classroom, some students were fighting.  a) While  b) When 

when or while - T2

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