we will never forget the days__we spent together in the countryside.1)when 2)on that 3)/
问题描述：
we will never forget the days__we spent together in the countryside.
1)when 2)on that 3)/
答
不填
解释如下：
the days （that）we spent……
即：we spent the days……
spend 后可直接接时间 spend time……
此句中，that作宾语，指代the days，故可以省略
恩~~
答
做这种题最简单的方法就是还原法
把先行词代进从句，完整用which，that，who
不完整用where，when，how
这里还原：we spent the days in the counryside.
是完整的，所以选which或者that
答
3
因为,the days作spent的宾语,spend days,所以可以不填,填what或which
根据所给选项,只能选3
如果还不懂,可以问我
答
which ，后面spend缺少宾语