1.they are waiting for a taxi.改否定句 2.my mother is cleaning t

1.they are waiting for a taxi.改否定句 2.my mother is cleaning t 小学英语3-4MY mother is cleaning the bedroom.改成否定句the children a they are my uncles 改否定句 1 They are (cleaning the window) 改否定句 一般疑问句 否定回答 括号提问 My mother cooks supper for me.改否定句 they are my father and mother (改同意句) they ,for ,bus ,the,waiting,are,a 连词成句 someone is waiting for you at the train station 改否定句 they are --- a bus now A waiting for B waiting 怎么改句子he is my father（疑问句）she is my mother（否定句） I didn"t have any money for a taxi 改肯定句 I didn't have any mony for a taxi(改同义句）