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题目内容
（郑州工程技术学院-大学英语（2））
____ a teacher in our college, it is necessary to have at least a master’s degree.
(A) To become
(B) One becomes
(C) Becoming of
(D) Who becomes
(A) To become
(B) One becomes
(C) Becoming of
(D) Who becomes
参考答案