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

Sentence: 'a metal bowl filled with lots of red apples'. Replace the letter 'b' with 'x' in the sentence.
a metal xowl filled with lots of red apples

Sentence: 'a number of people sitting on chairs near each other'. Replace the letter 'c' with 'm' in the sentence.
a number of people sitting on mhairs near eamh other

Sentence: 'a plane on the air flying very high'. Replace the letter 't' with 'h' in the sentence.

a plane on hhe air flying very high