求助GWD-31-39,还没讨论过!

lannyll

From 1965 on, the region’s standard of living has soared, but also unemployment and prices,

 

A.          but also

B.          and also

C.          but so have

D.          and so also

E.          but so did

现有的答案是C，难道是but unemployment and prices have so?

我选的是A...

牛牛来帮忙啊！

lannyll

 不明白这个句子结构是怎样的，到底省略了什么