题目内容：
47. On formal________, people pay more attention to manners.
(A) situations
(B) cases
(C) conditions
(D) occasions
参考答案：
选择题：47.On formal________, people pay more attention to
- 题目分类：郑州工程技术学院-大学英语（2）.
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On formal________, people pay more attention to manners.
(A) situations
(B) cases
(C) conditions
(D) occasions