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 computer, keyboard, and mouse sitting on a desk'. Replace the letter 's' with 'c' in the sentence.
a computer, keyboard, and mouce citting on a deck

Sentence: 'a toaster oven painted on the side of a wall'. Replace the letter 'e' with 'p' in the sentence.
a toastpr ovpn paintpd on thp sidp of a wall