my birthday is january 1(英语）

my birthday is january 1(英语） MY birthday is January 1st My birthday is ( )January first 改错：My birthday is in 1st January My birthday is on January ninth对吗? My mum’s birthday is January ___. My birthday is （ ） January and peter's birthday is （ ） March my birthday is () january and peteter's birthday is() march 1.My birthday is in January 对in January 提问 2.His birthday is My birthday is on January first.请问下on 能加吗 My birthday is on January 9th.对January 9th提问 改错:January is he birthday.