we will never forget the days__we spent together in the countryside.
问题描述:
we will never forget the days__we spent together in the countryside.
1)when 2)on that 3)/
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