__________ a teacher in a university, it is necessary to have at least a Master's degree.
（A）To become
（B）Become
（C）One becomes
（D）On becoming
参考答案
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更多大学英语选择题200道试题
- 1He _______ lives in the house where he was born.
- 2The rain stopped and the sun __________ to shine.
- 3Pipes made of plastic are now widely used in building as they are light and do not become _________ in water.
- 4He has failed me so many times that I no longer place any ___________ in what he promises.
- 5Admired by people in many nations, Mr.Zhou Enlai is ___________ among the world's greatest leaders.
