第30题: [单项选择]The higher the standard of living and the greater the national wealth, ______ A. the greater amount of paper is used B. the greater is the amount of paper is used C. the greater the amount of paper used D. the amount of paper is used is greater 参考答案:C 答案解析:此题考查 the more... the more 的用法。解题关键在于把握住对此项前后应一致的原则。由于题干的前一部分省略了谓语,选项中也可省去谓语。因此C项为正确答案。A项中名词短语前缺冠词。B项