GWD1-Q16

flintstone106

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

选 B， 想求教为什么 they were  不补出？谢谢！！

cynthia627

不应该是they were。要补也应该是they had accounted for或者 they had吧？！这个是应为主语谓语都一致的情况下，状语可以区分两个比较对象的时候，可以只保留状语~

flintstone106

明白了