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) ........... Sharon came home, her brother was playing video games a) When b) While 4) .............. Angela got home, she was making some coffee. a) When b) While 5) They were sleeping ............ the burglars broke in. a) when b) while 6) We were having a lesson ............... we heard a terrrible noise. a) when b) while 7) ............. I was cycling, the rain started. a) When b) While 8) We saw a falling star ............ we were going fishing in the lake. a) when b) while

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