问题补充：
—How was your day off yesterday?
—Perfect! It was my grandma’s birthday. We had a big cake.
A. eighty B. eightieth C. the eightieth
答案：
解析：考查数词的用法。表示“某人多大生日”应该使用序数词，且不需要使用定冠词。
如果觉得《—How was your day off yesterday?—Perfect! It was my grandma’s birthday. We had a big cake》对你有帮助，请点赞、收藏，并留下你的观点哦！
