1 . Behind every book is a man, behind the man is the race, and__________________________ (这个民族背后是自然和社会环境). (根据汉语提示完成句子)
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2 . We can't afford to fall _____ our competitors. (用适当的单词填空)
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2020-12-08更新
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56次组卷
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2卷引用:备考期末-新版北师大(2019)必修一Unit 3-Celebrations基础自测