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题型:句型转换 题类:常考题 难易度:普通
人教版(新课程标准)高中英语必修1 Unit 5同步练习二
→{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#}, I don't think we have the chance of winning.
→Not until{#blank#}1{#/blank#} how serious the pollution was.
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