— What field will your son go into after graduation?— I’m not sure but he a good teacher

问题补充：

— What field will your son go into after graduation?

— I’m not sure, but he a good teacher of English.

A. promises

B. becomes

C. turns

D. proves

答案：

(答案→)A. promises

B. becomes

C. turns

D. proves

解析：考查动词辨析。A有希望成为；B成为，变成；C变化；D证明是…；句意：—毕业以后你儿子要进入什么样的领域？—我不确定。但是他很有希望成为一名优秀的英语教师。故A正确。