I'll never forget the three days ___ I spent on the seaside with my friends.A whichB whenC in whichD during which
问题描述：
I'll never forget the three days ___ I spent on the seaside with my friends.
A which
B when
C in which
D during which
答
Awhich做spend的宾语
答
A which
which 代替了前面的three days,在从句中做spent 宾语