Tomorrowismy       birthday,Ipromisetotakeonmorechallen...

问题详情：

Tomorrow is my        birthday, I promise to take on more challenges in my        ．

   A. thirty; thirties     B. thirtieth; thirties        C. thirties; thirtieth   D. thirtieth; thirty

【回答】

B

知识点：数词

题型：选择题