题目内容：
18. ____ 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
参考答案：
选择题：18.____ a teacher in our college, it is necessary
- 题目分类：郑州工程技术学院-大学英语（2）.
- 题目类型：选择题
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____ 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