第1个回答 2017-11-02
Hi,xxx,how is your holiday?
you have been really hard-working for us last semester. do you have a good rest during the holiday?
第2个回答 2017-09-29
Good morning, teacher.
第3个回答 2017-08-08
morning,teacher
hi,teacher
hello,teacher
第4个回答 2017-09-08
正常打招呼后面加上Mr/Mrs/Miss XXX
第5个回答 2017-10-07
Hello, MR. (MISS MS)XX,nice to meet you
Glad to see you (again)
How are you doing.
It's my pleasure to meet you here.
etc...