---Whatwashebefore?---Hewas______medicalworkerbeforeheturned______write

发布时间:2020-08-06 11:54:49

---What was he before?---He was ______ medical worker before he turned ______ writer.A.a; theB.the; aC.the; /D.a; /

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D解析第一空考查不定冠词表示泛指的用法,“一个制药工人”,第二空考查不定冠词的特殊用法,当 turn表示“成为;成了”时,后面的表示身份职位的名词前不用冠词,如turn teacher=bee a teacher.
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