Race remains a prominent and（ ）issue in the United States, which has struggled to overcome a legacy of slavery and discrimination.
A、sensible
B、sensitive
C、sentimental
D、sensational
【正确答案】：B
【题目解析】：A. sensible：明智的，理智的；B. sensitive：敏感的；C.sentimental：伤感的，多愁善感的；D.sensational：轰动的，根据意思选B。句意：尽管美国一直在努力克服奴隶制的残余思想，消除歧视，但种族问题仍比较突出且敏感。
