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

Sentence: 'the cargo train is headed to the next destination'. Replace the letter 'h' with 'x' in the sentence.
txe cargo train is xeaded to txe next destination

Sentence: 'broccoli and a sweet potato are served on a white plate'. Replace the letter 'o' with 'c' in the sentence.
brccccli and a sweet pctatc are served cn a white plate

Sentence: 'a skate boarder stands on his board by himself'. Replace the letter 'd' with 'i' in the sentence.

a skate boarier stanis on his boari by himself