1) I was reading a book __________ my friend called me. a) while b) during c) when 2) We met a lot of interesting people __________ our trip to Spain. a) while b) during c) when 3) She was cooking dinner __________ the children were watching TV. a) while b) during c) when 4) The lights went out __________ we were having lunch. a) while b) during c) when 5) He fell asleep __________ the film. a) while b) during c) when 6) My phone rang __________ I was walking home. a) while b) during c) when 7) They stayed inside the house __________ it was raining heavily. a) while b) during c) when 8) __________ the concert, many people were singing along. a) While b) During c) when 9) I was listening to music __________ I finished my homework. a) while b) during c) when 10) We were playing football __________ it started to snow. a) while b) during c) when

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