Our school has a long history,it celebrated its _____(eighty)birthady last month.
问题描述：
Our school has a long history,it celebrated its _____(eighty)birthady last month.
答
本题填eightieth
eightieth是eighty的序数词,表示第八十个
本句翻译为：我们学校有很长的历史,上个月它庆祝过了它的第八十个生日.