I will never forget the days ________i spent in Xi'an

I will never forget the days ________i spent in Xi'an I will never forget the days ________I spent with my friends I will never forget the days when I spent in the countryside I will never forget the days ________ I spent in the country I will never forget the days whiich I spent in the countrysi I will never forget the days that I spent with my friends in I will never forget the days that we spent together in the c I will never forget the days when we spent together in the c I will never forget the days _____ we spent in the moun I will never forget the days-----we spent together in the fo I will never forget those days ____I spent in the countrysid I will never forget the month_______we spent together in the