than的平行对称

thelma_ca

prep1-50 答案选择a, 总是不明白究竟是怎么个对称法？有没有高人讲解一下Than 的平行对称法则？多谢。
Many teenagers undergo stress, but results of arecent study indicate that the patterns of stress that girls experience aremore likely to result in depression than are those that boys experience.
(A) are those that boys experience
(B) what boys experience
(C) boys' experience would
(D) boys' stress patterns do
(E) stress patterns of boys

joyviva

我觉得做这种对称时，要还原。A is likely to... than B is likely to...所以Be 动词不能省
此句还原应该是the patterns of stress that girls experience are more likely to result in depression than the patterns of stress that boys experience are likely to...

但是我不明白为何要把Be动词提前？请高手继续指点！

EMINEM830505

比较状语从句的倒装

thelma_ca

多谢楼上