People all over the world are all about the relationship between China and Japan.
A. tired
B. concerned
C. interested
D. talked
网友回答
A. tired
(答案→)B. concerned
C. interested
D. talked
解析：考查形容词辨析：A. tired疲劳的，B. concerned担心的，C. interested感兴趣的，D. talked这不是形容词，只有B项搭配介词about，句意：全世界的人都担心中国和日本的关系。选B。