题目内容
19．It's notpolite（礼貌） to talk with your mouth full while eating．分析 嘴里塞满东西时说话是不礼貌的．
解答 答案：polite；根据汉语提示，"礼貌"翻译为：polite；根据句中信息It's not…可知该单词用形容词形式；故该单词应为：polite，有礼貌的；形容词；故填polite．
点评 根据汉语提示，结合句中信息推知该句句意，根据句子的语法要求作出解答．
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