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题型:单选题 题类:常考题 难易度:普通
山东省临沂市蒙阴县2018-2019学年八年级下学期英语期末考试试卷(含听力音频)
—Yes. He got it as a birthday gift last week.
Humans {#blank#}1{#/blank#}(pollute) the earth all the time and there is not enough clean air and water.
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