Rewrite the sentences

How long has your teacher taught in this school ?
-> When _______________________________
When did you last write to her ?
-> How long ____________________________
When did you start learning English ?
-> How long ____________________________
We haven't seen out uncle nearly 10 years
-> It is ________________________________
She hasn't gone out with him for two years 
-> The last time_________________________
We last saw out grandfather two years ago 
-> Vì câu này mình làm nên ko đăng lời giải 
We haven't been to the concert for over a year
-> The last time ________________________
I last saw him when I was a student
->I haven't ____________________________
I last read '' War and Peace '' in 2005 
-> I haven't ___________________________
She has wrtiten the report for an hour
-> She began _________________________
It is three years since I last saw them .
-> I haven't ___________________________