英语演讲稿的开头和结尾

good morning, my dear teachers and my friends.

it is my great pleasure to stand here to introduce my ambition.

thank you for your listening. 

Good afternoon,teachers and my follew students.

Today i am going to talk about " my dream "

...

Lastly,

I need to thank you for your listening, 

you are indeed a wonderful audience~

Thank you!