（A）cheaper; not as better

（B）more cheap; not as better

（C）cheaper; not as good

（D）more cheap; not as good

（A）more and more rich

（B）more rich and more rich

（C）richer and richer

（D）richer and richest

（A）so; that

（B）too; to

（C）too; that

（D）enough; to