the business in shanghai is developed.shanghai is one of the biggest modern city in china.(合并为..
问题描述：
the business in shanghai is developed.shanghai is one of the biggest modern city in china.(合并为..
the business in shanghai is developed.shanghai is one of the biggest modern cities in china.(合并为一句)
____ the developed business,____ is one of the biggest modern cities in china.
答
Shanghaihas which