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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
–It's great. It is ideal home for wildlife.
—Bill. He's ______ active boy.
Zhu Hui is living with a American family in New York.
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