The factory ----- Mr Li used to work was closed last week.填where 还是which ..理由
问题描述：
The factory ----- Mr Li used to work was closed last week.填where 还是which ..
理由
答
where，因为where=in which
答
where
用which 的话要填in which
答
where
因为这里的先行词并不是从句中的宾语或者主语,所以这里要用关系副词where
我再举个例子：
The factory which Mr Li used to work in was closed last week.
这种情况下,先行词是从句中的介词的宾语,所以要用which
答
where 李先生曾经工作过的工厂上周关闭了。
在这里，where=in which
这是定语从句，把the factory 带入从句是 Mr Li used to work in the factory.
所以要用where，用which的话句子成分就少了，因为work后面不能直接跟宾语。
希望对你有帮助～～～