In this task, you need to replace a letter in the sentence with another given letter.

Sentence: 'this is a tennis player getting ready to serve the ball'. Replace the letter 'h' with 'y' in the sentence.
tyis is a tennis player getting ready to serve tye ball

Sentence: 'a chocolate cake decorated with strawberries on the side'. Replace the letter 'c' with 'x' in the sentence.
a xhoxolate xake dexorated with strawberries on the side

Sentence: 'two people are riding a motorcycle, one is wearing a helmet'. Replace the letter 'e' with 'k' in the sentence.

two pkoplk ark riding a motorcyclk, onk is wkaring a hklmkt