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题型：单选题 题类：常考题 难易度：普通
人教版（PEP）2018-2019学年小学英语四年级下册Recycle 1第一课时
My grandfather{#blank#}1{#/blank#}(live) in the countryside. There {#blank#}2{#/blank#}(be) some mountains. There are some trees. And there {#blank#}3{#/blank#}(be) a river too. The air {#blank#}4{#/blank#}(be) clean and fresh there.
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