1、Neville Cardus , who wrote for the Manchester 1、Guardian from 1917 until shortly before his death in 1975, is now known solely as a writer of essays on the game of cricket.

2、He has been the manager of the company until fairly recently 

问题1 ：请教曹老师，句子1,2中的until是个介词还是一个连词（conj)呢？如果是一个介词，为啥可以加这个副词作宾语呢？如果是一个连词，请曹老师f分别说一下都省略了哪些成分呢？我看不明白

3、This was, New York apart, the first American city I had ever been in where people actually lived downtown. 

4、He weaved around the tables to where she sat with Bob. 

问题2:请教曹老师，您在一个问题中说，where不能作in, to, at 的宾语，但是我找到了2个例句，都是where作为融合型关系副词引导的从句作介词in和to 的宾语。原问题：https://www.cpsenglish.com/question/41872