◎ 题干
--- Hello! Is that Tom over there? Long time no see. Let’s say hello to him.
---Please _____ in the library.
A.keep cleanB.keep quiet
C.wait in line D.drop litter there
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“ --- Hello! Is that Tom over there? Long time no see. Let’s say hello to him.---Please _____ in the library.A.keep cleanB.keep quietC.wait in line D.drop li…”主要考查了你对  【实义动词的单数第三人称形式】【实义动词】【动词短语】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。