Yesterday I met a(n) teacher by chance who taught me English in the university three years ago.
A. early
B. former
C. first
D. advanced
网友回答
A. early
(答案→)B. former
C. first
D. advanced
解析：考察形容词词义辨析。A早的（不做定语）；B正式的，以前的；C第一个；D高级的；句意：昨天我遇见三年前在大学里教我英语的以前的老师。故B正确。