New JJ

qiufeng1990

12、There are more babies who were born to women under 30 (than )over 30.
A.    than
B.    than they were
C.    than had been

I choose A. Actually I think none of them are right.

There are more babies who were born by women under 30 than those born by women over 30. 更好.

tongxun

同意两位的选择。相比较来讲，A 是最好的。under 30 than over 30。其他的，指带、时态全是乱来。