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

Sentence: 'a city street at dusk time with traffic'. Replace the letter 'i' with 'm' in the sentence.
a cmty street at dusk tmme wmth traffmc

Sentence: 'a woman is standing on a street curb'. Replace the letter 'a' with 't' in the sentence.
t womtn is sttnding on t street curb

Sentence: 'a scooter is parked next to a green fence in front of a building'. Replace the letter 'i' with 'q' in the sentence.
a scooter qs parked next to a green fence qn front of a buqldqng