In this task, you need to reverse all words of a given length in the sentence. The number of letters in a word determine its length. For example, the length of the word "apple" is 5.

Sentence: 'a man with a tennis racket gets ready to hit a ball'. Reverse all words of length '5' in the given sentence.
a man with a tennis racket gets ydaer to hit a ball

Sentence: 'four cute little ducklings swimming in the water'. Reverse all words of length '6' in the given sentence.
four cute elttil ducklings swimming in the water

Sentence: 'a remote that is sitting on top of a keyboard'. Reverse all words of length '3' in the given sentence.

a remote that is sitting on pot of a keyboard