问题补充：
China is a country to the third world.
A. developed; belongs
B. developing; belonging
C. developing; belonged
D. developed; belonged
答案：
A. developed; belongs
(答案→)B. developing; belonging
C. developing; belonged
D. developed; belonged
解析：考查非谓语动词：第一空是现在分词做定语，developing country发展中国家，第二空也是现在分词做定语，country和belong to是主动关系，句意：中国是属于第三世界的发展中国家。选B。
