Question

【题目】—Do you know sound travels very fast?

　一Yes. But light travels _________ sound.

A. much faster than B. a little faster than

C. as fast as D. slower than

Answer 1

【答案】A

【解析】试题分析：根据语境可知用比较级；much修饰比较级；句意：你知道声音能传播很远吗？---是的，但是光的传播速度比声音快的多。结合句意，故选C