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: 'two birds standing and sticking their heads in muddy water'. Reverse all words of length '3' in the given sentence.
Example Output: owt birds standing dna sticking their heads in muddy water

Example Input: Sentence: 'a computer and laptop sitting on a desk'. Reverse all words of length '6' in the given sentence.
Example Output: a computer and potpal sitting on a desk

Example Input: Sentence: 'old white refrigerator sitting between wooden cabinets in kitchen'. Reverse all words of length '2' in the given sentence.
Example Output:
old white refrigerator sitting between wooden cabinets ni kitchen