Thank you all for your wonderful help.
I just have a couple more sentences, if someone could please check for mistakes.

Please be repectful of others.
Пожалуйста будьте почтительны другим.

For those of you who have come, …
для таковых из вас, кто идёть, …

That is just the way it is.
Это так.
I asked this one before, but this just does not seem quite right.

He dedicated his life to making the world a better place.
Он посвятил свою жизнь вносить лучше мира.

Большое спасибо за помощь.