1) ______ I was walking, I saw my friend in the street. a) When b) While 2) --------They were whatcing T.V., she opened the door.. a) When b) While 3) ______ I was doing my homework, the door bell rang. a) When b) While 4) The students wrote in their notebooks, ________the teacher was talking in class. a) While b) When 5) Light went off______ Sara entered the house. a) when b) while 6) _______ he was shopping, his phone rang. a) When b) While 7) ______she was talking with her friends, her mother came in. a) when b) While 8) ________she was wiping her car, it started to rain. a) When b) While 9) ------ my package arrived house, my mum was cleaning the windows. a) while b) when 10) ------he was putting on his coat, he noticed that it was torn. a) When b) While 11) ______ a police officer stopped me, I was driving fast. a) While b) When

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