Tú no necesitas estar nerviosa, porque tú conoces este material. Tienes que hacer la presentación en inglés o tendrás un traductor que te ayuda. Si tú relajas, será fácil. Ellos te escogieron por una razón; eres inteligente.

Hi I hope i got all of the changes now - are all of the tu ( correct )

You did dit! Olé.

Sra

Yes, all of the "tu" are correct in the given sentence. "Tú" is the subject pronoun for the second person singular in Spanish. It is used when referring to someone familiar or informal, such as when addressing a friend or family member. In this context, "tú" is being used to address and encourage someone not to be nervous because they are familiar with the material and they have the ability to do well in their presentation.