I think it silly of you not to forgive others

题目

I think it silly of you not to forgive others
I think __silly __you not to forgive others for their mistakes.
it's of
第一个空为什么不是it?
这个不可以符合主语+think it+adj.of/for sb. to do sth.吗?

答案

这个句子后面有个not,当主语是第一人称,谓语动词是think时,要用否定前移,即I dont think it silly of you to forgive others for their mistakes.这样就可以用it了,所以原来的要用it's.明白了吗