I live in is called Shenzhen, which is really a modern city.
A. which
B. what
C. that
D. where
网友回答
A. which
(答案→)B. what
C. that
D. where
解析：考查宾语从句：句意：我住在叫深圳的城市，这真是一个现代化的城市。介词in后面是宾语从句，从句中缺少主语，用what连接宾语从句，which是哪个，也可以引导定语从句，这句话缺少先行词，that引导宾语从句，在从句中不做成分，where哪里，不能做从句的主语，选B。