Halloween is believed to be a day all the spirits come back to the world of the living, a

Halloween is believed to be a day all the spirits come back to the world of the living, and we have the same day in China called “Guijie, the Day of Dead.
A. where
B. when
C. which
D. that

A. where(答案→)B. whenC. whichD. that解析：本题考查定语从句。先行词为day，在从句中作时间状语，故用关系词when，选B。

这个答案应该是对的