圣诞快乐: GWD12_30

alanguo

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.

1. than
2. than born
3. than they were
4. than there had been
5. than had been born

拿不准。

lttlecat

答案是C吧

alanguo

答案是E。但答案不一定正确。个人认为，C中they指代babies不对。问题是：than后面的比较物能不能省？如果省，省多少？E中than后面的时态和前面的不匹配。