It's just that I find science really difficult 这是一个主语从句还是同位语

It's just that I find science really difficult 这是一个主语从句还是同位语 it's just that i find science really difficult It's just that I find science really difficult 中science后不加wa It's just that I find science really defficult.是从句么? It's just I find science really difficult.这里difficult是名词作宾补吗 It is just that I find science really difficult 什么句型呢?不清楚! it is a fact that 这个句型到底是同位语从句还是主语从句? it is my belief that i will find a cure for cancer是主从还是同位语从句 为什么是I find science really difficult ,而不是I find science is re It's time that we collected our reports.是同位语从句还是定语从句? It was in his office where he worked请问这是主语从句还是同位语从句 怎样判断一个句子是宾语从句,主语从句,表语从句,定语从句,还是同位语从句