关于It is +adj+to do sth的问题
I don't think _____ necessary to tell you about it.
A.this B.that C.him D.it
2`用括号内所给中文的适当形式填空
I think it ______ (必要的）to learn English well.
能不能说It necessary to learn English well?如果这样的话,老感觉缺个动词.