I always believe that the world is___you think it is,

问题描述:

I always believe that the world is___you think it is,
so smile at the world and It'll be back
空格填————Awhat Bthat 哪个为什么?

A
what 可以做宾语,而这个句子中正好少宾语.
that修饰名词,做定语从句.