Our science teacher told us that light___faster than sound.A.traveledB.travelC.is travelingD.travels
问题描述：
Our science teacher told us that light___faster than sound.
A.traveled
B.travel
C.is traveling
D.travels
答
Our science teacher told us that light___faster than sound.
我们的科学老师告诉我们，除了声音light___faster。
1.A.traveled:游历
Our science teacher told us that light traveled faster than sound.
我们的科学老师告诉我们，光旅行速度比声音。
2.B.travel:旅游
Our science teacher told us that light travel faster than sound.
我们的科学老师告诉我们，光的旅行速度比声音
3.C.is traveling:是旅行
Our science teacher told us that light is traveling faster than sound.
我们的科学老师告诉我们，光行驶速度比声音。
4.D.travels:旅行
Our science teacher told us that light travels faster than sound.
我们的科学老师告诉我们，光传播速度比声音。
答
选D 光比声快是一个客观定理，所以用一般现在时，类似的还有~太阳从东方升起 ~，~地球绕太阳转~ 等等
答
D,事实哲理用一般现在时.