Our teacher told us that light much faster than sound.A. traveledB. travelsC. is travelin

问题补充：

Our teacher told us that light much faster than sound.

A. traveled

B. travels

C. is traveling

D. was traveling

答案：

A. traveled

(答案→)B. travels

C. is traveling

D. was traveling

解析：此题考查宾语从句的时态。句意：老师告诉我们光比声音传播速度快。当宾语从句描述的是事实或客观真理，不管主句的谓语动词是什么时态都要用现在时。选B。