为什么有的从句用which引导 有的用in which?
举个例子吧
This is the factory which i visited last year.
which在句中作visited 宾语 因为你要说 visited the factory
This is the factory in which i worked.
in which 在句中作worked 状语 因为你要说work in the factory
举个例子吧
This is the factory which i visited last year.
which在句中作visited 宾语 因为你要说 visited the factory
This is the factory in which i worked.
in which 在句中作worked 状语 因为你要说work in the factory