Smiling doesn't mean you're happy． Sometimes, it just means that you're strong enough to face problems．
A. fortunately
B. eventually
C. deliberately
D. necessarily
网友回答
A. fortunately
B. eventually
C. deliberately
(答案→)D. necessarily
解析：考查副词：A． fortunately幸运地B． eventually最终C． deliberately故意地D． necessarily必要的，句意：微笑未必意味着快乐，有时只意为着你可以勇敢的面对问题。选D。