问题
Mum, could you buy me a dress like this? — Certainly, we can buy _______one than this, but ________this.
A:a better, better than
B:a worse, as good as
C:a cheaper, as good as
D:a more important, not as good as
B:a worse, as good as
C:a cheaper, as good as
D:a more important, not as good as
正确答案是：
