Which term can be used to best describe the relationship between the underlined adjectives in “Unlike her gregarious sister, Jane is an unsociable person”?（ ）
A、Synonymy.
B、Antonymy.
C、Homonymy.
D、Polysemy.
【正确答案】：B
【题目解析】：gregarious 社交的，群居的；unsociable 不爱交际的。这两个词是一组反义词。即使不了解意义，也可以从“Unlike”判断出来。
