When ___your parents' birthdays?Sorry,I__know.

are
don'tSeptember tenth is ___Day. How many days are there in January.Teachers'为什么不是Teacher’s? 还有How many days are there in January的答语：A Twenty-eight B.Twenty-nineC.Thirty D.Thirty-one规定的啊Deo 最后确定一下 那___birthday is May first. A．My brother B.My brther C.My brother 's DMy brothers'C为什么为什么为什么为什么？？？？？？ 是怎么分S在前在后的哦因为后面是is啊，就用单数如果是are，就选D了Q号给我，不会的问你我加你吧，你告诉我你的912163575