mine序数词

ninth.
要去e的.

mine我的（什么东西）是一个代词，是没有序数词的。一般是在基数词的后面加th变成序数词

这不简单：
ninth !!!!
one---first two---second three---third four---fourth five---fifth
six---sixth seven---seventh eight---eighth nine---ninth ten---tenth
eleven---eleven twelve---twelfth thirteen---thirteenth
fourteen---fourteenth fifteen---fifteenth sixteen---sixteenth
seventeen---seventeenth eighteen---eighteenth nineteen---nineteenth
twenty---twentieth……
我就列举20个吧！