问题补充:
—How was your day off yesterday?
—Perfect!It was my grandmas birthday. We had a big cake.
A .eighty B. eightieth C. the eightieth
答案:
解析:句意:--昨天,你的假期过得如何?--完美!昨天是我奶奶的八十大寿。我们吃了一个大蛋糕。考查数词的用法,表示某人多少个生日用序数词形式,在第八十前已经有了限定词my grandma’s, 因此不用定冠词the.故选 B