一道很值得思考的语法题 关于比较结构

低调进步

58. (27510-!-item-!-188;#058&003569)

If current trends continue, by the year 2010 carbon emissions in the United States will soar to a

level more than one-third higher than were those in 1990, according to official projections.

(A) will soar to a level more than one-third higher than were those

(B) will soar to a level more than one-third higher than that

(C) would soar to a level more than one-third higher than it was

(D) would soar to a level more than one-third higher than those

(E) would soar to a level more than one-third higher than they were

A. 复数those不能指代单数level，因此只能强制指代前句的复数主语emissions，那么，句子变成将

level与emissions相比较，比较对象不对等

B. 正确。

C.主语应该使用will，而不是would

D.主语应该使用will，而不是would；复数those没有指代对象

E. 主语应该使用will，而不是would；复数they没有指代对象



than 的比较结构   than之后的句子的省略情况应该是与than之前相同的才省略
B选项   还原过来应该是  than that was 。。。    这个was应该是不能省的啊



求解释