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: 'the double decker bus is headed for its destination'. Reverse all words of length '2' in the given sentence.
Example Output: the double decker bus si headed for its destination

Example Input: Sentence: 'a man in a blue shirt is playing tennis'. Reverse all words of length '3' in the given sentence.
Example Output: a nam in a blue shirt is playing tennis

Example Input: Sentence: 'a skateboarder skates at a skate park designed for advanced users'. Reverse all words of length '8' in the given sentence.
Example Output:
a skateboarder skates at a skate park dengised for decnavda users