1.He told us light (travelled) faster than sound when we (paid a visit to )him.
问题描述：
1.He told us light (travelled) faster than sound when we (paid a visit to )him.
答
这个句子有错误,要改一下的.He told us light travels faster than sound when we paid a visit to him.当我们拜访他的时候,他告诉我们：光的传播速度要比声音快.light travels faster than sound 这里需要用一般现...