请问一道题，谢谢各位CDer

花菜

GWD-12-Q30:
According to public health officials, in 1998 Massachusetts became the first state in which more babies were born to women over the age of thirty than under it.

A.    than
B.    than born
C.    than they were
D.    than there had been
E.    than had been born
请问这道题为什么选A呢，对于比较题型的比较对象我老是分不清
谢谢各位~~

dengyichao

应该是more babies were born to women over the age of thirty than babies born to women under it
B肯定不对，C中they的指代有问题
由此看来，应该选A

selinalover

en  如果用a的话 说明是同一样的baby 故不合理 用a省略了 同样的主谓

dengyichao

主谓不是都是一样的吗？都是babies are born，这里的baby也没有定语修饰啊