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 and a dog in the water with a surfboard'. Reverse all words of length '2' in the given sentence.
Example Output: a man and a dog ni the water with a surfboard

Example Input: Sentence: 'a street performer copying a woman on her phone'. Reverse all words of length '7' in the given sentence.
Example Output: a street performer gniypoc a woman on her phone

Example Input: Sentence: 'a bunch of guys and one girl sitting at a table'. Reverse all words of length '2' in the given sentence.
Example Output:
a bunch fo guys and one girl sitting ta a table