ShesaidshewasflyingtoShanghainextweekendHetoldmehewouldcallhisbrothertomorrow这两句明明都是间接引语,可老师说要把tomorrow改为thenextday.把nextweek改成thatweek,但为啥不改呢?

　　ShesaidshewasflyingtoShanghainextweekendHetoldmehewouldcallhisbrothertomorrow

　　这两句明明都是间接引语,可老师说要把tomorrow改为thenextday.把nextweek改成thatweek,但为啥不改呢?