The Spring Festival is a festival Chinese people gather together eating dumplings to cele

问题补充：

The Spring Festival is a festival Chinese people gather together eating dumplings to celebrate the spring’s coming.

A. on which

B. which

C. during which

D. that

答案：

A. on which

B. which

(答案→)C. during which

D. that

解析：考察定语从句。On表示在某一天，during在……期间。当前面有介词时，引导词只能使用which指物，句中主句为从句的逻辑状语，故选C。