有关英语语法的知识
问题描述：
有关英语语法的知识
China will be a _____ country by the middle of the next century.
A.hing-developing B.high-developed
C.highly-developed D.highly-develop
选哪个答案,请说明理由.
答
C developed是发达国家 developing是发展中国家
highly是副词修饰作用