(1).My birthday is on the first of March.(在on the first of March下面划线) ___ ___ birthday?

问题描述:

(1).My birthday is on the first of March.(在on the first of March下面划线) ___ ___ birthday?

When‘s your birthday?
你的生日是什麽时候?
对时间的提问用when

_When's__ _your__ birthday?