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题型：单选题 题类： 难易度：普通
牛津版（深圳·广州）英语八年级上册Unit 7 Memory第4课时More practice and culture corner训练案
—I think he will come if he ______ free tomorrow.
{#blank#}1{#/blank#} there are {#blank#}2{#/blank#} rainforests, many beautiful plants and animals would die out.
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