问题补充：
— I think saving water is more important than recycling paper in our daily life.
— I disagree. Recycling paper is saving water.
A. the same as
B. so important as
C. as important as
D. the most important
答案：
A. the same as
B. so important as
(答案→)C. as important as
D. the most important
解析：the same as和……一样；so important as像……一样重要，一般用于否定句；as important as和……一样重要；the most important最重要的。句意：在我们的日常生活中，我认为节约用水笔回收废纸更重要。——我不同意。回收废纸盒节约用水一样重要。结合语境可知选C。
