问题补充：
I can see, there is only one way to solve this problem.
A. As soon as
B. Even if
C. As long as
D. As far as
答案：
A. As soon as
B. Even if
C. As long as
(答案→)D. As far as
解析：词组辨析题。A. As soon as 一…就 B. Even if即使 C. As long as 只要 D. As far as 据…所知句意：据我所知只有一种方法能解决问题。根据语境选D
