为什么有的从句用which引导 有的用in which?

问题描述:

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 factoryThis is the factory in which i worked.in which 在句中作worked 状语 因为你要说work in the...