In China the number of cities is increasing development is recognized across the world.

问题补充：

In China, the number of cities is increasing development is recognized across the world.

A. where

B. which

C. whose

D. that

答案：

A. where

B. which

(答案→)C. whose

D. that

解析：考察定语从句。本题的关键部分是找出先行词cities,后面的定语从句是修饰整个先行词。横线后面有名词，说明这个关系代词是whose.结合句意可知C正确。