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题型：填空题 题类：常考题 难易度：普通
仁爱科普版八年级上Unit4 Our world Topic 3 The Internet makes the world smaller.同步练习
—His pet dog died.
Many teenagers don't know{#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} {#blank#}4{#/blank#}their parents.
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