In this task, you need to replace a letter in the sentence with another given letter.
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Question: Sentence: 'a boy riding his skate board on an obstacle course'. Replace the letter 'e' with 'b' in the sentence.

Answer: a boy riding his skatb board on an obstaclb coursb


Question: Sentence: 'a man sitting at a table and using his laptop'. Replace the letter 'd' with 'o' in the sentence.

Answer: a man sitting at a table ano using his laptop


Question: Sentence: 'a lady blowing bubbles in a restaurant'. Replace the letter 't' with 'x' in the sentence.

Answer:
a lady blowing bubbles in a resxauranx