I'll never forget the days (which) I spent in the countrysid

I'll never forget the days (which) I spent in the countrysid I will never forget those days ____I spent in the countrysid I'll never forget the days that/which we spent together. 英语问题一个I shall never forget the days which I spent in the cou A49．I’ll never forget those days _ I spent in the country wi .I’ll never forget the days ______ we spent together in the 32.I’ll never forget the days ______ we spent together in th I'll never forget the days (that) I spent on the farm during I’ll never forget the days----I spent on the farm. A.when B. I'll never forget the three days ___ I spent on the seaside I"ll never forget the days I’ll never forget the days ____ I spent with them