My birthday is July eighth.eighth是序数词,前面为什么不加the?

My birthday is July eighth.eighth是序数词,前面为什么不加the? My birthday is October twenty-eighth.求同义句转换 My birthday is on May the eighth.（改为一般疑问句,并做否定回答） month,my,the,of,is,birthday,eighth,this连词成句 month,my,the,of,is,birthday,eighth,this 重新排序,变成一个完整的句子 mother,my,the,of,is,birthday,eighth,this,连词成句 为什么my birthday is junuary fourth的序数词不加the my birthday is october twenty-eighth同义句转换 （ ）（ ）（ ）my （ )is My birthday is October twenty-eighth.(同义句) _____ ______ ____ ( ) is the eighth month of the year Linda's birthday is( on the eighth of March).a.8th of March April is the eighth month of the the year.意思是