题目内容：

用括号里的词的适当形式填空Seven___(twenty) of the students think this movie is boring.
要有分析

优质解答

Seven (twentieths ) of the students think this movie is boring.
7/20 的学生认为这部电影很枯燥/无聊.
注：分数的表达法：分子用基数词,分母用序数词,分子大于1,分母加S
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