1) She ______ studying for her exam when the power went out. a) was b) were 2) They _____ walking in the park while it was raining heavily. a) was b) were 3) I ________ cooking dinner while my roommate was watching TV. a) was b) were 4) The kids _______ playing in the yard while their parents were gardening. a) was b) were 5) He ______ reading a book while waiting for the train. a) was b) were 6) We ________ talking on the phone when suddenly it disconnected. a) was b) were 7) Sarah _______ practicing the piano while her brother was doing his homework. a) was b) were 8) They _______ swimming in the pool while the sun was setting. a) was b) were 9) The chef ________ preparing the ingredients while the oven was preheating. a) was b) were 10) My mom and I _________ watching a movie while my dad was working. a) was b) were 11) My friends _________ buying the concert tickets while I was sleeping. a) was b) were 12) Maria and Antonio _________ sleeping on the sofa while I was runing. a) was b) were

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