________a doctor in a hospital, you had better have at least a master’s degree.

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问题 ________a doctor in a hospital, you had better have at least a master’s degree.

选项 A、To become
B、Become
C、One becomes
D、On becoming

答案A

解析 分析句子结构可知,逗号后面是一个完整的句子,且逗号前后两部分之间没有连词,所以空处应用非谓语动词,因此可排除B、C两项。on doing sth. 意为“一做……就”,不符合题意,因此可排除D项。根据句意可知,空处应用不定式,和空后的a doctor in a hospital一起作目的状语。故选A。
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本试题收录于: 英语题库普高专升本分类
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