of the students in our class are from the north.A. Two ninethB. Two ninthC. Two ninthsD. T

of the students in our class are from the north.
A. Two nineth
B. Two ninth
C. Two ninths
D. Two nineths

A. Two ninethB. Two ninth(答案→)C. Two ninthsD. Two nineths解析：句意：我们班2/9的学生来自北方。分数的表达：分子用基数词，分母用序数词，分子大于1，分母用复数。2/9应该是two ninths ,序数词“九”应是ninth .故选C。

你的回答很对