My birthday is in May.怎样变成复数句?

My birthday is in May.怎样变成复数句? Vera’s birthday is in May.改为否定句My father’s birthday is in ju my birthday is in april改为复数句怎么改? My birthday is in November.改为复数句 My birthday is in November(该成复数句 my birthday is in may 的问句 My birthday is in may (变成一般疑问句）并附理由 My mother 's birthday is in May,too.When i my birthday is may 3rd的同义句 MY birthday is may 3rd.改同义句 it’s in may.my birthday is in june.uncle bill’s birthday is _______ birthday is in may,