I have heard___(eat)burnt food is bad.应该怎么填啊

问题描述:

I have heard___(eat)burnt food is bad.应该怎么填啊
请告诉我为什么这样填

I have heard ___(eat) burnt food is bad.
eating
I have heard 后面省略了一个that
然后跟的是宾语从句eating burnt food is bad