1.We all konw light_____much faster than sound.

1.We all konw light_____much faster than sound. As we all know,light (travel)faster than sound As we all know,light_(travel)faster than sound. Light faster than sound 1.He told us light (travelled) faster than sound when we (pa 翻译We know that light travel much faster than sound. Light _______ faster than sound. it ＿to all that light travels faster than sound A 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 Light goes faster than _____ _____(sound).