关于从句中it与it is什么时候用哪种形式???答:(没有共产党就没有新中国,这是毋庸质疑的。)③ It + be + 过去分词 + that …. 该句型常见动词有:say, hope, think, suppose, expect, report, know, believe, decide, etc. e.g. It is said that they have invented a new type of computer. (据说他们发明了一种新型电脑。) It is believed...