I think it interesting to study English,it后面可以不用is吗?

I think it important to study English well.与I think it is im I find it interesting to learn English.为什么it后面不可加is. I think it's(use)to study English well i think it diffiult to study english 这句话省略 is 是什么情况? think It is interesting to learn English.有没有is有什么语法区别吗? I think it is interesting to computer gemes对吗 I think it is not easy to learn English well.这个句子为什么不用否定前移啊? I think it diffcult to learn English well.为什么it后面不is?it在这里的作 I think it is easy to study Chinese. i think it interesting I think it is very interesting 是什么意思 I think it is __________ interesting movie