—What field will your son go into after graduation from Nanjing University?—I’m not quite

问题补充：

—What field will your son go into after graduation from Nanjing University?

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

A. promises

B. becomes

C. makes

D. proves

答案：

(答案→)A. promises

B. becomes

C. makes

D. proves

解析：本题考查动词在具体语境中的意义。promise在此处的意思为“预示会成为”，其他三个选项的动词意义与本题语境不符。