http://groups.google.com/group/alt.usage.english/msg/47ed6e25f52a66f3
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Teacher:
Can we say "Good morning, teacher"?
http://www.englishforums.com/English/CanMorningTeacher/hjwmv/post.htm
https://groups.google.com/d/topic/alt.usage.english/7WfqzdV1gVM/discussion
