题目内容
7.We plan to hold a big party to celebrate my grandpa'sseventieth(seventy) birthday.分析 我们计划举行一个盛大的派对来庆祝我爷爷七十岁的生日.
解答 答案:seventieth.
根据We plan to hold a big party to celebrate my grandpa's--(seventy) birthday,可知我们计划举行一个盛大的派对来庆祝我爷爷七十岁的生日,句子中表示第几个生日应该用序数词,seventy的序数词是seventieth.故填seventieth.
点评 本题考查用所给单词的适当形式填空,首先要根据语境明确句意,然后再根据相关语法对所给单词在形式上做出正确的变化.
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