Thereare50studentsinourclass,

问题详情：

 There are 50 students in our class, _____ of whom have been to the Great Wall.

   A. two-three      B. two-third      C. two-thirds           D. second-three

【回答】

 C。英语分数词由基数词和序数词组成：分子基数词，分母序数词，分子大于“1”，分母用复数。句意：我们班有50名学生，三分之二的人去过长城。

知识点：数词 量词

题型：选择题