My advice is predicated on my experience.

He failed notwithstanding my advice.

To the best of my knowledge, the cathedral dates back to the Middle Ages.

So far as I know, there is no such word.

Will you go in place of me?

My temperature is 38 degrees.

My grandmother attributes her good health to active living.

My explanation was not sufficient.

I want to thank my host family.

Don't monkey around with my papers.