any other后可加复数和单数。。但怎么区分加复数还是单数？

同类比较 any other+单数

如：John is taller than any other boy in his class.
不同类比较 any+单数

如：John is taller than any boy in Class Three.

看你想表达什么概念了。如考试填空就看后面的谓语动词变化等