classmates
再见
您好
我们
我很好。
你好
teachers
we, us
同学
teacher
你们
good morning
不用谢
How are you?
同学们
不客气
谢谢
You're welcome; no need to thank
老师们
老师
你好吗？
早上好
Good-bye
You're welcome; no need to be polite
classmate
Hello (polite)
Hello
Thanks
you (plural)
I am fine.