I'll never forget the days___we spent in the country.A.when B.that

问题描述:

I'll never forget the days___we spent in the country.A.when B.that
不知道为什么要选B的?

因为这里引导词作spent的宾语,
that在定语从句中可作宾语.
而when只能在定语从句中作时间状语.