题目内容：

____ you be able to travel at the speed of light,you would not reach that star in more than a thousand years.
A.Might B.Could C.Should D.Would
Why Meaning?

优质解答

【选择C】虚拟语气：省略 if 如果条件状语从句的谓语动词中含有were,had,should,可以省略连词if,把were,had,should,放在主语前构成倒装.如果条件状语从句是否定形式,倒装时只能把not放在主语的后面,不能用缩写形式而...