5 . I began studying English 3 years ago
6. It is five years since my brother last saw his best friend.
7.How long have you studied Englissh?
8.We have lived here for 15 years.
9.She hasn’t She hasn't visited me for 5 months.
10.I haven’t written to my uncle since July.
11.We have been close friends for a long time
12.Minh has collected stamps since 200.
