I said to my students ：“light travels much faster than sound

I said to my students ：“light travels much faster than sound My Paul said to us,'Light travels faster than sound.' My physics teacher said that light travels faster than sound Mr.Wang said to us,"Light travels faster than sound." Light travels much faster than sound. He said,“Light travels much faster than sound”.改为间接用语 The teacher said light (travels) much faster than sound.为什么填 1 He said,"Light travels much faster than sound." 2 His moth Mr paul said to us,‘Light travels faster than sound.’大神教我怎么变 As is known to us all,light travels much faster than sound. It ( )that light travels faster than sound Light travels faster than sound改为过去式