She said that light ____ much faster than soundA.travel B.travels C.traveled D.traveling但是不是说要前后时态统一吗?怎么不是C?
问题描述：
She said that light ____ much faster than sound
A.travel B.travels C.traveled D.traveling
但是不是说要前后时态统一吗?怎么不是C?
答
客观事实用现在一般时
答
B,因为是一条真理，用一般现在时
答
记住这是一个特例：当叙述客观真理时,无论前面是什么时态,都要用一般现在时…
而这里“光比声音要快”恰恰就是一个客观真理…
再例如：
The teacher had said that the earth travels around the sun.