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题型：单选题 题类：常考题 难易度：普通
—Not really, I spent nearly the whole vacation in extra classes.
I think there will be more pollution, {#blank#}1{#/blank#} {#blank#}2{#/blank#}?
Your father used to ride a bike, {#blank#}1{#/blank#} {#blank#}2{#/blank#}?
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