They are going to find a new approach these plex problems.
A. to solving
B. to solve
C. in solving
D. solves
网友回答
(答案→)A. to solving
B. to solve
C. in solving
D. solves
解析：考查动名词做宾语：approaches后面搭配to （doing） sth，to是介词，后面接名词或动名词，句意：他们要想一种新的解决复杂问题的方法。选A。