问一个关于英语口语的简单问题！

That's all I want to say/present (talk 一般用于普通的交谈)，
thanks for your attention and attendance (这样表示礼貌), any questions?

就说That's all, thank you就行了

This concludes my talk. Thank you.

thank you for your attention

I finish to speak.or
or, i speech to talk.

That is all I want to talk today, any questions?