Question

【题目】My family are going to have a party to celebrate my grandpa’s birthday.

A. ninety B. nineties

C. ninetieth D. ninetieths

Answer 1

【答案】C

【解析】

试题分析：句意：我的家人们要举办一个聚会来庆祝我爷爷九十岁的生日。根据句意及题干分析此空应用序数词，所以选C。