There are about two ___ students in our school.

很高兴为您
There are about two ___ students in our school.
A.thousand B.thousands C.thousands of D.thousands of
数字+thousand/hundred/million 等数量名词时,后面的名词不需要加s,后直接接名词
thousand/hundred/million后接of 时,需要加s,表示“数百/千/百万...”
没有”数字+thousand/thousands等+of“这类结构
所以答案是：【A】
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B three thousand，thousand不能加复数
thousands of是成千上万的。。。
祝你进步

A
具体数字+thousand
thousands of成千上万

A
两千学生 ，准确数字后不加S.