“Is your father a doctor?”“ No, he isn’t. He is office worker.”A. a B. an C. the

发布时间:2020-08-20 18:56:00

“Is your father a doctor?”“ No, he isn’t. He is      office worker.”
A. a    B. an   C. the

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解析:表示事物类别,在名词前通常用不定冠词,元音音素前用an,office第一个音是元音,故用an,故本题选B。
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