I think it is difficult to do the work in an hour.句子正确吗?

题目

I think it is difficult to do the work in an hour.句子正确吗?
一定要说成
I think it difficult to do the work in an hour.
它和it做形式宾语
I find it worth seeing that film again.
有何不同？
I found it difficult to answer the question.
为什么就可以？
写成宾语从句怎么写？

答案

I think it is difficult to do the work in an hour.正确的I think是插入语,有或没有意思不变,可以省略.I find it worth seeing that film again.这里的it是宾语.I found it difficult to answer the question.这里...