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题型:单选题 题类:常考题 难易度:普通
She is {#blank#}1{#/blank#} {#blank#}2{#/blank#} a chance to thank him for his help all the time.
— He dinner at that time.
—The air here is fresher.
—{#blank#}2{#/blank#} (it's/they're) on the bed
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