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 bedroom with clothes scattered everywhere and an unmade bed'. Reverse all words of length '7' in the given sentence.
Example Output: a moordeb with sehtolc scattered everywhere and an unmade bed

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: 'two horses tethered together with caps on their ears'. Reverse all words of length '8' in the given sentence.
Example Output:
two horses derehtet rehtegot with caps on their ears