she asked whether I would be free the next day or not.间接引语变直

she asked whether I would be free the next day or not.间接引语变直接引语.
she asked whether I would be free the next day or not.请问这道题从间接引语到直接引语该如何变化.给出答案后,必须注明,是为什么要这样改,根据什么.对于这个句子,我有以下一些疑义,如果可以,or 用法是什么.还有没有别的改法.1.She asked,"You will be free tommorrow ,won't you "2.She asede me ,"Are you free tommorrow?为什么这样改.是不是反义疑问句?跟or not 有什么关系?【如果全部答出来,】