The photo brought me back to the memory of the time in Qingdao, _____ I spent my summer holiday by the seaside with my friends.
A.that
B.when
C.which
D.what
网友回答
B解析考查定语从句。先行词是the time，在定从_____ I spent my summer holiday by the seaside with my friends.中作时间状语。所以选B。