1 - I was washing my dog when my uncle called me. 2 - They were buying their costumes for Halloween party last Saturday. 3 - Bia was playing volleyball in school championship. 4 - The children were playing in the backyard yesterday. 5 - Gabriel was studying his English lesson for the tests. 6 - Leo and his parents were living in LA since last Summer. 7 - My grandparents were loving that trip. 8 - I was listening a nice music yesterday. 9 - My grandfather was writing a letter for my cousins. 10 - I was doing my homework last night.