i worked for 8 hours___ i finished it.填when还是before.这两个不是都可以

when i have finished it.疑问 It is company ( ) I worked two years ago.这里填in which还是that? Could I borrow that book when you have finished( )it? I worked on the problem for a long time and I worked it out 为什么I had worked in a car factory for two years before I came although i've never worked for a bank before,i feel quite( ) when I am finished会错吗? I won't lend you the book before I have finished it. I guess it worked翻译 I have finished reading it.I finished reading it. i had finished it already I have just finished it