问题补充：
We still have a long way to go to solve all the problems the Yangtze River.
A. regardless of
B. in regard to
C. in search of
D. instead of
答案：
A. regardless of
(答案→)B. in regard to
C. in search of
D. instead of
解析：考查短语辨析。句意：就解决长江的所有问题而言，还有很长的路要走。A不管，不顾；B关于；C搜寻；D代替。故选B。
