问题补充：
We have two ears and one mouth so that we can listen we speak .
A. as twice much as
B. as much as twice
C. twice as much as
D. as much twice as
答案：
A. as twice much as
B. as much as twice
(答案→)C. twice as much as
D. as much twice as
解析：句意：我们有两个耳朵和一个嘴巴，这样我们可以多听少说。在As … as结构中要使用原级，所以选C。
