He had been a teacher and then he turned ---doctor.

问题描述:

He had been a teacher and then he turned ___doctor.
横线上不是应该填“a”的吗?为什么答案是什么也不填呢?
1个回答 分类:英语 2014-09-17

问题解答:

我来补答
turn 后面跟人的职位 不加冠词.
 
 
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