英语选择,为什么选B?
____in the USA,Louis has now become the 24th largest city.A.Being the fourth biggest cityB.Once the forth biggest cityC.It was once the forth biggest cityD.The forth biggest city it was
参考答案:很明显要选选择一个状语,不应该是一个句子,故可以排除cd,然后a的语意也不正确,b最为最佳答案!