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.

Example Input: Sentence: 'a skier is flying through the air while people watch'. Reverse all words of length '7' in the given sentence.
Example Output: a skier is flying hguorht the air while people watch

Example Input: Sentence: 'grown black cat sitting in a blue chair in a living room'. Reverse all words of length '4' in the given sentence.
Example Output: grown black cat sitting in a eulb chair in a living moor

Example Input: Sentence: 'a person standing next to two upright blue surfboards on a shoreline'. Reverse all words of length '10' in the given sentence.
Example Output:
a person standing next to two upright blue sdraobfrus on a shoreline