英语口语演讲开场和结语要怎么说啊。。姐姐

开头：Honorable Chairman ..., heads of local offices of the ..., Distinguished guests, Ladies and Gentlemen,
It is a great pleasure to join you all today to celebrate the first anniversary of the founding of ...

结尾: Now,please join me for a toast:
To the healthe and happiness of you all.

Hi, ladies and gentlemen.Thanks for your attention.It is my great pleasure to stand here and share with you something about...... ..........................................
OK ,that's all, thanks for you listening.

你是选手还是主持人？