1) I was reading a book .......... suddenly I heard a noise. a) when  b) while c) both 2) ......... Rose was cooking dinner, her husband came home. a) When b) While c) both 3) ............. Sandra and Kathy were talking in the living-room, the doorbell rang. a) When b) While c) both 4) Ben was playing in a basketball team ............... he was a kid. a) when b) while c) both 5) ........... Sharon came home, her brother was playing video games. a) When b) While c) both 6) .............. Angela got home, she started making coffee. a) When b) While c) both 7) They were sleeping ............ the burglars broke in. a) when b) while c) both 8) We were having a lesson ............... we heard a terrrible noise. a) when b) while c) both 9) ............. I was cycling, the rain started. a) When b) While c) both 10) He broke his arm ........... he was playing basketball. a) when b) while c) both 11) We saw a falling star ............ we were fishing in the lake. a) when b) while c) both 12) I saw a nightmare ......... I was sleeping last night. a) when b) while c) both 13) .......... I got up this morning, it was snowing heavily. a) When b) While c) both 14) Tom burnt his hand ......... he was cooking dinner. a) when b) while c) both

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