you enjoy the days___ you spent in Beijing during the Mid-Autumn Festival?填that?结构?
问题描述：
you enjoy the days___ you spent in Beijing during the Mid-Autumn Festival?填that?结构?
答
that 或者是which
后面是定语从句修饰前面的days
sb spend some time in...
所以这里是宾语when呢？time是作为spend的宾语，不用使用when，when是当做状语时使用，相当于in which