介词+which怎么确定介词：
方法/步骤
1
当 'which' 用作关系代词时。通常会被介词如'in','on','at','by','with'等所预置。使用的介词取决于上下文和 'which' 之前的动词。
2
介词+which，怎么确定介词的举例：'on'+which是用于指正在工作的书：'The book on which I am working is very interesting.' (我正在工作的那本书很有趣)'in'+which用于指说话者出生的城市：'The city in which I was born is very beautiful.' (我出生的那个城市非常美丽)'with'+which用于指说话者去参加聚会的人：'The person with whom I am going to the party is my best friend.' (我和谁去参加聚会是我最好的朋友)