1) Susan broke her leg......... she was riding her bike a) while b) when 2) .......I was playing, my mother called me. a) while b) when 3) I was playing ........ my mother was cooking a) while b) when 4) ....... he was dying some eggs, Sarah was reading a) while b) when 5) He fell off the ladder ...... he was climbing a tree a) while b) when 6) I was working ....... she was dancing a) while b) when 7) ........ I was washing my hands, Sue was singing a) While b) when 8) What were you doing ........ you herd the phone a) while b) when 9) ........ I was walking, I found a wallet a) while b) when 10) They were eating, ....... the accident happened a) while b) when 11) ........ the door bell rang, I was doing my homework a) while b) when 12) The light went off ......... Sara was watching T.V. a) while b) when 13) ......... he was doing shopping, he lost his credit a) while b) when 14) He will take the dog to the vet .......... you are at the concert. a) while b) when 15) He finished it ......... we were at the beach. a) while b) when 16) She was drawing ........... he arrived a) while b) when 17) The dog was sleeping ............ the cat was eating  a) while b) when 18) My parents were playing ............... he left  a) while b) when

When or while

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