options: f : ok. then i will ask nancy for dinner tonight . f : i will stay at home alone because i do n't want ask nancy for dinner . f : ok. so i can ask nancy for dinner tonight if i do n't have to have my brother companied . f : i have to stay home with me brother because i will not ask nancy to have dinner .
article: f : dad , can i go out tonight ? m : no , i 'm sorry . you ca n't . f : can i ask nancy for dinner ? m : ok , but you ca n't let your brother alone .