1) _________ I was eating, my brother arrived.  a) While b) When 2) My dog was running in the park, ___________ it tripped. a) While b) When 3) _________ I was cooking, my friend called me. a) When b) While 4) She listens to music _______ she studies. a) while b) when 5) He fell asleep_________ watching TV. a) while b) when 6) _______ I arrived at the party, everyone was dancing. a) While b) When 7) Call me________ you get home. a) when b) while 8) I was very happy ________ I heard the news. a) while b) when 9) I met a lot of interesting people ________ traveling. a) while b) when 10) She was surprised _______ she saw the gift. a) when b) while 11) He played video games _______ his sister did her homework. a) when b) while 12) ________ the sun rises, the birds start singing a) While b) When 13) _______I was reading a book, the phone rang. a) When b) While 14) I always feel nostalgic _______ I visit my hometown. a) when b) While 15) ________the rain stopped, we went for a walk. a) While b) When

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