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题型：单选题 题类：常考题 难易度：容易
鲁教版（五四制）七年级上册Unit 4 What did you do last weekend? 单元测试卷
—- Yes,it helps us ___ a servant（仆人).
Some people {#blank#}1{#/blank#} {#blank#}2{#/blank#} {#blank#}3{#/blank#} the building when the earthquake happened.
Many wild animals are endanger, so we should save them.
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