Question

They believe spirit stays with the body for 3 days, ______someone always stays with the dead person.

1. A.
   during this time
2. B.
   during which
3. C.
   so when
4. D.
   during when

Answer 1

B
解析：
考查定语从句。句中先行词为3 days，during which即during 3 days在三天期间，选B。