—How many students are there in your school?— students I think. A. Thousand of B. Three t

问题补充：

—How many students are there in your school?

— students, I think.

A. Thousand of B. Three thousands C. Three thousand

答案：

解析：句意：---你们学校有多少学生？---三千学生。成千的thousands of, hundred、thousand、million等前面有具体数字修饰时，其后不能加s。根据题意，故选C。