My sister _____(be) a singer since she left school.这个空应该填什么呢

My sister is a () singer.She sings() 这个空应该填什么呢? my sister decided to be (a singer)when she was a child. 对括号提 She is a sister of my ____ (sister) 填什么 Tom _____(waste) time since she left her school she ____ a bedroom _____ her sister中间填什么 Lily sings very【 】(good).she wants to be a singer.括号上填什么?为什么 A study has been _____ recently .这个空填什么? My sister should keep on _____ if she wants to be a dancer.( 21) Li Hua _____ in the factory since she left school ten ye _____(play) football is my favorite sport 空应该填什么形式 she was a succes（）a popular singer空填一个介词