I last saw him when I was a student
-> I haven't ________________________
I last read '' Was and Peace '' in 2005 .
-> I haven't _________________________
We last met her in 2009
-> We haven't ______________________
When did you first know that teacher ?
-> How long ________________________
When did you start learning English ?
-> How long ________________________
When did you see that film ?
-> How long ________________________
How long have you started that work ?
-> When ____________________________
When did you get your libary card ?
-> How long ________________________