of the students in our school are boys. A. Second-threes B. Two-third C. Second-twos D. T

问题补充：

of the students in our school are boys.

A. Second-threes

B. Two-third

C. Second-twos

D. Two-thirds

答案：

A. Second-threes

B. Two-third

C. Second-twos

(答案→)D. Two-thirds

解析：句意：我们学校三分之二的学生是男生。在英语中，分数的分子用基数词，分母用序数词，分子大于一，分母用复数，所以三分之二是Two-thirds。故选D。