—The number of the students in our school is about nine of them are boys.—I think so.A.

问题补充：

—The number of the students in our school is about nine . of them are boys.

—I think so.

A. hundred, Two thirds

B. hundred, Two third

C. hundreds, Two thirds

D. hundreds, Two third

答案：

(答案→)A. hundred, Two thirds

B. hundred, Two third

C. hundreds, Two thirds

D. hundreds, Two third

解析：句意：我们学校的学生数目大约九百，三分之二是男生。Nine hundred 九百，具体的数字里面hundred不用复数。分数的表达，分子用基数，分母用序数，当分子大于1时，分母要用复数，结合题意故选A。