题目内容
4．We should bepolite（礼貌）in our life and work．分析 我们应该在生活和工作中要有礼貌．
解答 答案：polite．根据"We should be（礼貌）____"可知在be后面要用形容词来作be的表语，结合给出的汉语提示"礼貌"所以要用polite，故填polite．
点评 首先要掌握在系动词be后面经常用形容词来作其表语，然后结合给出的汉语提示就可以确定正确答案．
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