不会沉的

I have a headphones whose sound quality are great.
I have a headphones, the sound quality of which are great.

特殊情况可以是which,比如in which case

一道经典的题目：
They stayed with me for two weeks, ____they drank all the beer I had.
A. for which B. which time C. during which time D. during which

不是还有who,that,whom,as，嘛?

The air quality in the city , as is shown in the report, has improved over the past two months.

✎﹏๓₯㎕最美的不是下雨天，是和小小伦躲过雨的屋檐

怎样判断非限制性定语从句中的先行词 我怎么知道它修饰的是整句话

老师说从句缺什么成分就用那个成分可以用的的关系代词 然后我想问怎么可以判断先行词 （非限制性定语从句中）

呀哈

我根本不知道你们在说什么，虽然我也大一了

嘻嘻 怎样判断非限制性定语从句中的先行词 我怎么知道它修饰的是整句话