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题型：单选题题类：常考题难易度：普通

仁爱科普版七年级上Unit 1 Making new friends Topic 3 How old are you?专题练习：不定冠词 a；an的用法

This is ______ eraser. That is ______ ruler.

A、an; an B、a; a C、an; a D、a; an

举一反三

This is______ English book.

Peter wants to be ________ engineer in the future.

他有一份有趣的工作。

He has {#blank#}1{#/blank#} interesting {#blank#}2{#/blank#}.

Yancheng, ________energetic city, has set up trade relations with lots of countries and areas.

I heard ___________ argument just now. Two young women were arguing in a supermarket.

Mr. Smith lives on _______________ island far from the mainland.

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