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 woman taking her surf board into the ocean'. Reverse all words of length '3' in the given sentence.
Example Output: a woman taking reh surf board into eht ocean

Example Input: Sentence: 'a person is on the court and playing tennis'. Reverse all words of length '3' in the given sentence.
Example Output: a person is on eht court dna playing tennis

Example Input: Sentence: 'a cat is sleeping beside a laptop on the table'. Reverse all words of length '3' in the given sentence.
Example Output:
a tac is sleeping beside a laptop on eht table