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题型:单词拼写(单句) 题类:常考题 难易度:普通
人教新课标高一英语必修一 Unit 4 Earthquakes 单元练习
Dr Grover Krantz, studied reports of such strange creatures for many years. He {#blank#}1{#/blank#} {#blank#}2{#/blank#} they exist.
— . It's not allowed.
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