Our physics teacher told us that sound ______ faster than light .A.traveledB.travelC.is travelingD.travels

问题描述:

Our physics teacher told us that sound ______ faster than light .
A.traveled
B.travel
C.is traveling
D.travels

D
虽然整个句子的时态是过去时,但当出现真理这样的句子的时候就用一般现在时.比如:光比声音快.地球绕着太阳转.等