Question

【题目】The math teacher was so happy because _________ of the students worked out that difficult problem.

A.four fifthB.four fiveC.fourth fifthsD.four fifths

Answer 1

【答案】D

【解析】

句意：这位数学老师很高兴，因为五分之四的学生做出了那道难题。

考查分数的表达方式。分数表达方式：分子基数词，分母序数词，分子大于1，分母变复数。D项表述正确。故选D。