Hello.Nice to see you. 你好，见到你很高兴。
Glad to see you. 认识你很高兴。
It’s very nice to have a chance to meet you. 真高兴能有这个机会认识你。
Good morning ， teachers and fellow students. 老师、同学们早。
I enjoy the privilege of meeting you. 我很荣幸遇见你。
Is everything going on well？ 一切还好吗？
I am happy to see you. 我很高兴见到你。
I am honored to know you. 认识你深感荣幸。
Well ！ This is a surprise！ How have you been？ 嗯！真是个惊喜！近来可好吗？
What''s up? 近来可忙?
How’s everything？ 一切都好吗？
Long time no see. 好久不见了。
Hi （Hello）， everybody. 嗨，大家好。
It’s a pleasure to know you. 认识阁下深感荣幸。
May I introduce myself to you？ 我可以自我介绍吗？