问题补充：
, I have never seen anyone who’s as capable as John.
A. As much as I have traveled
B. Now that I have traveled so much
C. Much as I have traveled
D. As I have traveled so much
答案：
A. As much as I have traveled
B. Now that I have traveled so much
(答案→)C. Much as I have traveled
D. As I have traveled so much
解析：本题中从句与主句之间存在明显的让步关系，故需要选择由as引导的让步状语从句，并且要将副词much提前进行倒装。故正确答案为C。
