Complete the sentences with information about you. Use for and since.
(be) friends with
I've been friends with Viktor for six years.
1 (know) my teacher
4 (live) here
2 (be) in this class
5 (understand) English
3 (have) a mobile phone
6 (not have) an exam
1 I've been known my teacher since 2007.
4 I've lived here for three years.
2 I've been in this class for seven years.
5 I've understood English since 2016.
3 I've had a mobile phone for one months.
6 I haven't had an exam since last year.