That he will come to the conference has excited every one of us. That in some countries women are still treated unequally is unfair.
It is certain that most of the farmers have bought in more money by all means. 注意：在“It is necessary，important，strange，natural+that从句”结构中，从句常用“（should+动词原形”形式。
It is necessary and important that one(should)master the skill of operating computer so as to meet the need of a job. （2）It+be+名词（短语）（a pity，a shame，good news，a fact，an hour，a wonder，no wonder等+that从句
It’s no wonder that you’ve achieved so much success. （3）It+be+过去分词（said，told，heard，reported，decided，suggested，advised，ordered，remembered，thought，considered，well known，announced等）+that从句
It is said that the professor has already succeeded in carrying out this experiment. 注意：在It+be +suggested，advised ，ordered， requested ，insisted ，required+that从句中应用“(should+动词原形)”。
It was decided that they (should+) start the project the next month. （4）It+特殊动词（seem，appear，happen，matter）+that从句
It happened to me that I had been away when he called.
Was it decided that they(should)start the project the next month? Did it happen to you that you had been out when he called?