I knew that light______(travel)faster than sound three years

I knew that light______(travel)faster than sound three years I knew that light _______ (travel) faster than sound three y 用动词的适当形式填空1.Light______(travel)much faster than sound.2.The Nobody knew that light （）（travel）much faster than sound at t 翻译We know that light travel much faster than sound. Light_______(travel)much faster than sound. The teacher told us that light __(travel) faster than sound. It ( )that light travels faster than sound The light __(travel)faster than the sound. As we all know,light (travel)faster than sound As we all know,light_(travel)faster than sound. Light travel faster than sound.=Sound ___ travel so ___ as l