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题型：句子翻译 题类： 难易度：容易
沪教版（2024）2024-2025学年七年级上册Unit 4 The Earth 基础达标
Throwing waste into river will cause problems.
Don't {#blank#}1{#/blank#} {#blank#}2{#/blank#} your English.
—Yes. They can take harmful gases and provide us ______ oxygen.
Lingling isn't good at playing the violin but she wants to {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}.
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