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题型:单选题 题类:模拟题 难易度:普通
—Her father is ill in hospital. She has to him.
Parents are {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#} that their own children put down smart phones by themselves.
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