◎ 题干
Beijing         a lot in the past ten years. Now it has become one of the biggest
modern          in the world.
  
[     ]
A. changes, cities      
B. changed ;city
C. has changed; cities    
D. had changed; cities
◎ 答案
查看答案
◎ 解析
查看解析
◎ 知识点
    根据n多题专家分析,试题“Beijing a lot in the past ten years. Now it has become one of the biggest modern in the world. [ ]A. changes, cities B. changed ;cityC. has changed; citie…”主要考查了你对  【可数名词(单数名词,复数名词)】【现在完成时】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。