单选题
About ______ of the books in our school library are written in Chinese.
A、
four-fifth
B、
four-fifths
C、
fourth-fifth
【正确答案】
B
【答案解析】
[解析] 分数词是由基数词和序数词组成的,分子用基数词,分母用序数词,除了分子是1的情况外,序数词都要用复数。
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