my birthday is 几月几号is后加不加on?

my birthday is 几月几号is后加不加on? My birthday is on when is your birthday?my birthday is on _. My birthday is on January ninth对吗? My birthday is后面加不加on/at? My birthday is on December 12th My birthday is on May______(one). my birthday is on the the ninth和my birthday is on March nint My birthday is .It is on July 19th 填空 My birthday is on January first.请问下on 能加吗 my birthday is on october 27.my birthday is october 27哪个对?为什 My birthday is october tenth 可否变成My birthday is on october t