状语从句啊
定语从句必然是用来修饰某个东西的.Gone are the days 这个是倒装么，有什么限制么，比如能不能说nice are the days，kind are the guys？amicable is he，谢谢了是倒装无误。但后续的例子用的很少。 nice are the days 正常用应该是how nice are the days.