my sister was watching TV while l was doing my homework last night是过去进行时吗?

My sister was（） ill yesterday I was surprised to learn that my sister was drinking there was no questinon that she was my best sister . I was cooking while my sister was sleeping I was busy to ______(babysit)my sister yesterdayWhy? my sister told me who she was waiting The girl sat in the room yesterday was my sister. my sister was born ______the fifth of january,1992 my sister was dancing while i ___ the piano. 'My watch was broken by my sister.这里用'WAS BROKEN'是对的吗? 英语翻译I was on my way home from junior high and in order to get to my house you have to walk by this baseball diamond.And there was a game of baseball going on and it looked kind of interesting,so I stopped.There weren't very many people watchi I was trying my best to finish my work when my sister was whtching TV 这句话有语法错误吗? My sister's dream was ____ (be) a dancer when she was a little girl. When I was three years old just before my sister was 求翻译：My sister's hair was no darker than mine when I was her age. My birthday is_____January,1990, and my sister was born on_____(twelve) of March 改为同义句：My mother was ill,so I had to look after my sister. While my brother was playing the guitar ,my sister listened to music.哪里错了