soaring television costs accounted for more than half the spending in the presidential campaign of 1992, a great proportion than it was in any previous election. B, a great proportion than 我想问,这个主动词was补出是错误的?cost在1992的时候被计算的是一个数字,那后面不就是和它是(was)在其他竞选中做比较嘛?
soaring television costsaccounted for more than half the spending in the presidential campaign of 1992, a great proportion than it was in any previous election.