Making a proper choice the future will probably make much difference in our life.
A. concerning
B. to concern
C. concerned
D. having concerned
网友回答
(答案→)A. concerning
B. to concern
C. concerned
D. having concerned
解析：考查介词：concerning关于，concerned关心的，担心的，句意：做出关于未来的适当选择将可能对我们的生活有很大影响。选A。