we know ___ travels not so fast as light.

we know ___ travels not so fast as light. we know _______doesn,t travel so fast as light. Light travels so fast that we can hardly imagine its speed.请 ___(not run) so fast ——Do you know sound travels very fast?——Yes.But light travel 英语单选：——Do you know sound travels very fast?——Yes.But light t we know sound travels very run not so fast as 与doesnt run so fast as区别 The light travels fast than the sound.改错 As we all know,light (travel)faster than sound We run so fast as to catch the last bus可以说成We run fast so as Light travels ___than sound.a.much fast b.far fast c.much fa