It’s polite ______ “Thank you” when you receive something from someone. A. says B. say C. saying D. ...
2023-01-11 23:54:38 100次 2014-2015学年辽宁大石桥七年级上期末英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It’s polite ______ “Thank you” when you receive something from someone.
A. says B. say C. saying D. to say
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