you can say anything you would say to anybody else!
example...
Hallo
Guten Tag
Guten Morgen
Tag
Just be sure if you decide to put it in a sentence to use Sie (which is the formal way of saying you) instead of du. It is just a sign of respect and that is important in their culture.
Lao Shi'n hao is how you say hello teacher in chinese
guten tag or hallo
Hello from Germany translates as Hallo aus Deutschland
In Frankfurt, Germany the word is 'hallo'
Salut, prof de science.
Bonjour comment allez-vous enseignant
my biology teacher Diane said that she just said hello PS hi Amy :-)
You Would Say Hallo Pronounced [Hah loor]
Guten Tag is most acceptable "hallo" is generally informal
"Laoshi hao" means "teacher good" in Mandarin Chinese. It is a way of saying "good teacher" or "great teacher" to show respect and appreciation for someone's teaching.
The cast of Hello Teacher - 1918 includes: Bebe Daniels
Hello Teacher - 1918 was released on: USA: 10 February 1918