1.He started working in this factory 15 years ago.
2.He has learnt English for 8 years.
3.We began learning English 1 year ago.
4.I began studying business administration in London 2 years ago.
5.We have worked on this project for 1 year.
1.When did they live in this neighborhood?
2.When did you last see Tom?
3.When did they buy the house?
4.How long has he worked for the company?
5.How long have you used the car?
