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 man laying on a bench and a woman next to him touching his face'. Reverse all words of length '4' in the given sentence.
Example Output: a man laying on a bench and a woman txen to him touching his ecaf

Example Input: Sentence: 'a skateboarder doing a trick on a ramp'. Reverse all words of length '2' in the given sentence.
Example Output: a skateboarder doing a trick no a ramp

Example Input: Sentence: 'half eaten white frosting layer cake with strawberries'. Reverse all words of length '8' in the given sentence.
Example Output:
half eaten white gnitsorf layer cake with strawberries