Mygrandmais

问题详情：

My grandma is _____years old this year. We are planning a special birthday party   

   for her _____ birthday next Sunday.

   A. Ninetieth; ninetieth              ty; ninety 

   C. Ninety;  ninetieth                 tieth; ninety

【回答】

C

知识点：数词

题型：选择题