The government has decided to build a modern cinema many migrant workers live. A. in which

问题补充：

The government has decided to build a modern cinema many migrant workers live.

A. in which

B. that

C. where

D. when

答案：

A. in which

B. that

(答案→)C. where

D. when

解析：考察定语从句。定语从句的先行词是a modern cinema,定语从句的结构是非常完整的，所以使用关系副词，先行词又是指地点的，故C正确。