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题型：单选题 题类： 难易度：普通
仁爱版英语八年级下册Unit 6 Topic 3 Section A课时检测
—Yes. But light travels _________ sound.
It is very important to eat a {#blank#}1{#/blank#} {#blank#}2{#/blank#} every day.
—Yea，walk together, we can go even farther.
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