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题型：填空题 题类：常考题 难易度：困难
接力版（三年级起点）小学英语四年级下册Lesson 6 What is it doing? 同步习题
—What is he doing?
—
—He________ his room.
—They {#blank#}2{#/blank#} (climb) the mountain.
{#blank#}1{#/blank#}is Kate{#blank#}2{#/blank#}?
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