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 basketball ............... Erick arrived. a) when b) while 5) ........... Sharon came home, her brother was playing video games. a) When b) While 6) Angela got home, ................ her mom was making some coffee. a) When b) While 7) They were sleeping ............ the robbers were stealing. a) when b) while 8) We were having a lesson ............... teacher asked kate about her homework. a) when b) while 9) He broke his arm ........... he was playing basketball. a) when b) while 10) Tom arrived with his Dad ......... his mother was cooking dinner. a) when b) while

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