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题型：单选题 题类：模拟题 难易度：普通
吉林省延边州2020届九年级下学期英语教学质量检测试卷
—The teacher didn't come the bell rang.
— Yes. One of his famous sayings, "Learn the new ________ reviewing the old", is very helpful to us.
—Wow, what a clever boy!
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