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题型:句型转换 题类:常考题 难易度:普通
The old man doesn't know {#blank#}1{#/blank#} {#blank#}2{#/blank#} get to the supermarket.
{#blank#}1{#/blank#}harder, {#blank#}2{#/blank#} we will make more progress in science and technology.
{#blank#}1{#/blank#} {#blank#}2{#/blank#} book it is!
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