14.They work long hours but don't earn enough to ensure a _____ living for themselves and their families.
A. reticent B. decent C. innocent D. descent

reticent 沉默寡言的

decent (from) 合适的
despise 蔑视、轻视
split 分开、分裂

innocent 无辜的、天真的

descent 降落、世系
descend 下降
descendant 后代、子孙
precursor 祖先
journey 旅行、探险