light is(thousands of times)faster than sound.为什么time要加s?

light is(thousands of times)faster than sound.为什么time要加s? Light faster than sound light travels about a million times faster than sound Light _______ faster than sound. Light travels faster than ----- 是noise还是sound,为什么 It ( )that light travels faster than sound Light travels faster than sound改为过去式 Light goes faster than _____ _____(sound). Light travels much faster than sound. Light _____ faster than sound填什么 millions of times为什么time要加s 1 It's common knowledge that light travels faster than sound