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题型：语法填空（单句） 题类：常考题 难易度：普通
上海市浦东新区第四教育署2019-2020学年六年级下学期英语期末试卷
Seven {#blank#}1{#/blank#} (twelve) of the students have taken part in the tree-planting activity since Monday.
—It's on June________.
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