求助GWD1-16

wendyweng

Soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a greater proportion than it was in any previous election.

A.      a greater proportion than it was  

B.       a greater proportion than

C.      a greater proportion than they have been
        

D.      which is greater than was so

E.       which is greater than it has been

这一题，麻烦大家帮帮忙啊~~

  

wendyweng

我选了A，但是答案是B，我觉得要机上it was，但是为什么这里不用的？

cathy_gao

A中补出的话应该补出it does,因为文中用的costs.

这样理解对不对？

melody2121

比较结构的省略形式,主语和谓语都一致所以省掉了