问题 更新时间2023/4/3 12:59:00 What is the expression of “mind their p’s and q’s” supposed to mean? ( )(本题2.5分) A、 To mind their own business. B、 To remember to say “please”. C、 To remember to say “thank you”. D、 To be well-mannered. 答案 登录 注册 D、 To be well-mannered. 出自：青书学堂 >> 西安石油大学大学英语（2）作业题
问题 更新时间2023/4/3 12:59:00
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