Yesterday I met a(n) teacher by chance who taught me English in the university three year

问题补充：

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

答案：

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。