I have known the applicant for three years.
I was (或 am) [根據(jù)這個(gè)老師是否現(xiàn)在還是你的老師] the applicant's highschool History and Languages teacher.
I have known the applicant for three years.
I was (或 am) [根據(jù)這個(gè)老師是否現(xiàn)在還是你的老師] the applicant's highschool History and Languages teacher.