1) ______ I was walking, I saw a lion. a) While b) When 2) I met George ______ he was working. a) while b) when 3) ______ Simon was sleeping, the sailors cleaned the ship. a) When b) While 4) ______ they arrived, it was raining. a) When b) while 5) I took a photo ______ the elephant was eating. a) while b) when 6) ______ the ship stopped, everyone clapped. a) When b) While 7) I was writing ______ you were talking. a) when b) while 8) ______ the teacher was speaking, we listened. a) When b) while 9) They smiled ______ the lion jumped. a) while b) when 10) ______ I was studying, my dog barked. a) When b) while 11) ______ we were watching TV, the cat ran away. a) when b) while 12) I saw my friend ______ I was going home. a) while b) when 13) ______ the sun was shining, the animals slept. a) When b) While 14) We left ______ it started to rain. a) while b) when 15) ______ I was swimming, I saw a fish. a) When b) While

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