While I _____was watching___ (watch) TV, the phone ___rang_____ (ring). Yesterday, she ___was cooking_____ (cook) dinner when  her friend ___arrived_____ (arrive). We ____were____ (play) football when it suddenly ___started_____ (start) raining. They ____were having____ (have) a picnic in the park when a squirrel _____stole___ (steal) their sandwiches. He ___was studying_____ (study) at the library when he ___realized_____ (realize) he forgot his notebook at home. When the teacher _____entered___ (enter) the classroom, the students ___were working_____ (work) quietly. We ____were walking____ (walk) in the forest when we _______heard_ (hear) a strange noise. Last night, while I _____was reading___ (read) a book, my cat ___jumped_____ (jump) on my lap. They _____were dancing___ (dance) at the party when the music suddenly _stopped_______ (stop). The kids __were playing______ (play) in the garden when it ___started_____ (start) to snow.