1) 1.I was reading a book____suddenly I heard a noise. a) when b) while 2) ____Rose was cooking dinner, her husband went to work. a) When b) While 3) ____Sandra and Kathy were talking in the living room, the doorbell rang. a) When b) While 4) Ben was playing in a basketball team____he was a kid. a) when b) while 5) Sharon came home____her brother was playing video games. a) when b) while 6) _____Angela got home, her mother was making coffee. a) When b) While 7) They were sleeping____the burglars broke in. a) when b) while 8) We were having a lesson____we heard a siren. a) when b) while 9) ____I was cycling, the rain started. a) When b) While 10) He broke his arm____he was playing basketball.  a) when b) while

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