题目内容：
—On formal______, people pay more attention to manners.
A situations B cases C conditions D Occasions
参考答案：
答案解析：
选择题：—On formal______, people pay more attention to manners.A situations B cases C co
- 题目分类： 大学英语B级
- 题目类型：选择题
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加减通圣散功效与作用
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