His mother's birthday is on December __the__ ___twenty__ __fourth___.
如果两个空的话应该是
His mother's birthday is on December __the__ ___twenty-fourth__.
应该没错呵呵，是两个空呢亲，可以加the么？。 。 。如果两个空的话应该是His mother's birthday is on December __the__ ___twenty-fourth__.意思是这个他的母亲的生日是12月24日的。