Dang 2: 2 mệnh đề khác thì → It be V3-ed+that+S+V+O....... →S + be V3-ed + To have V3-ed To have been V3-ed - To have been V-ing Ex 1: It is said that he died at the age of 108. →People He Ex 2: People think that the woman was killed by terrorists. → It →The woman Ex 3: People believe that the old man was living alone on an island. → It →The old man Ex 4: People alleged that there had been a fire. → It →There