the school life is very ---(different,difference)选什么

题目

the school life is very ---(different,difference)选什么
为什么

答案

to be 后接一个形容词,或静态动词.different 是形容词,difference是它的名词形式,显然选different.
另外,学习外语不要老问为什么,这样学起来很机械.