Is taht the small town you ofen ofer to?just the one -------

Is that the small town you ofen ofer to?just the one 【where】you know I used to work for years.
因为此句中的work是【不及物动词】,不能有宾语.
Do you still remember the chicken farm【that或which】we visited three months ago
因为visit是【及物动词】,需要名词、代词或不定代词做宾语.